Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
author: Daniel Baumann <daniel.baumann@progress-linux.org> 2024-04-19 00:47:55 +0000
committer: Daniel Baumann <daniel.baumann@progress-linux.org> 2024-04-19 00:47:55 +0000
commit: 26a029d407be480d791972afb5975cf62c9360a6 (patch)
tree: f435a8308119effd964b339f76abb83a57c29483 /testing/web-platform/mozilla/tests/mathml/tables
parent: Initial commit. (diff)
download: firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
84 files changed, 8384 insertions, 0 deletions
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/columnlines-1-ref.html b/testing/web-platform/mozilla/tests/mathml/tables/columnlines-1-ref.html
new file mode 100644
index 0000000000..e5ea01a7de
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/columnlines-1-ref.html
@@ -0,0 +1,77 @@
+<!-- -*- mode: HTML; tab-width: 2; indent-tabs-mode: nil; -*- -->
+<!-- vim: set tabstop=2 expandtab shiftwidth=2 textwidth=80:  -->
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>mtable frame</title>
+    <!-- Copyright (c) 2011 Design Science, Inc.
+         License: Apache License 2.0 -->
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
+  </head>
+
+  <body>
+
+    <math>
+      <mtable>
+        <mtr>
+          <mtd>
+            <mn>1</mn>
+          </mtd>
+          <mtd>
+            <mn>2</mn>
+          </mtd>
+          <mtd>
+            <mn>3</mn>
+          </mtd>
+          <mtd>
+            <mn>4</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>5</mn>
+          </mtd>
+          <mtd>
+            <mn>6</mn>
+          </mtd>
+          <mtd>
+            <mn>7</mn>
+          </mtd>
+          <mtd>
+            <mn>8</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>9</mn>
+          </mtd>
+          <mtd>
+            <mn>10</mn>
+          </mtd>
+          <mtd>
+            <mn>11</mn>
+          </mtd>
+          <mtd>
+            <mn>12</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>13</mn>
+          </mtd>
+          <mtd>
+            <mn>14</mn>
+          </mtd>
+          <mtd>
+            <mn>15</mn>
+          </mtd>
+          <mtd>
+            <mn>16</mn>
+          </mtd>
+        </mtr>
+      </mtable>
+    </math>
+
+
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/columnlines-1a.html b/testing/web-platform/mozilla/tests/mathml/tables/columnlines-1a.html
new file mode 100644
index 0000000000..c642df9ebb
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/columnlines-1a.html
@@ -0,0 +1,78 @@
+<!-- -*- mode: HTML; tab-width: 2; indent-tabs-mode: nil; -*- -->
+<!-- vim: set tabstop=2 expandtab shiftwidth=2 textwidth=80:  -->
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>mtable frame</title>
+    <!-- Copyright (c) 2011 Design Science, Inc.
+         License: Apache License 2.0 -->
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
+    <link rel="match" href="columnlines-1-ref.html"/>
+  </head>
+
+  <body>
+
+    <math>
+      <mtable columnlines="none">
+        <mtr>
+          <mtd>
+            <mn>1</mn>
+          </mtd>
+          <mtd>
+            <mn>2</mn>
+          </mtd>
+          <mtd>
+            <mn>3</mn>
+          </mtd>
+          <mtd>
+            <mn>4</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>5</mn>
+          </mtd>
+          <mtd>
+            <mn>6</mn>
+          </mtd>
+          <mtd>
+            <mn>7</mn>
+          </mtd>
+          <mtd>
+            <mn>8</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>9</mn>
+          </mtd>
+          <mtd>
+            <mn>10</mn>
+          </mtd>
+          <mtd>
+            <mn>11</mn>
+          </mtd>
+          <mtd>
+            <mn>12</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>13</mn>
+          </mtd>
+          <mtd>
+            <mn>14</mn>
+          </mtd>
+          <mtd>
+            <mn>15</mn>
+          </mtd>
+          <mtd>
+            <mn>16</mn>
+          </mtd>
+        </mtr>
+      </mtable>
+    </math>
+
+
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/columnlines-1b.html b/testing/web-platform/mozilla/tests/mathml/tables/columnlines-1b.html
new file mode 100644
index 0000000000..291f3e229a
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/columnlines-1b.html
@@ -0,0 +1,78 @@
+<!-- -*- mode: HTML; tab-width: 2; indent-tabs-mode: nil; -*- -->
+<!-- vim: set tabstop=2 expandtab shiftwidth=2 textwidth=80:  -->
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>mtable frame</title>
+    <!-- Copyright (c) 2011 Design Science, Inc.
+         License: Apache License 2.0 -->
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
+    <link rel="mismatch" href="columnlines-1-ref.html"/>
+  </head>
+
+  <body>
+
+    <math>
+      <mtable columnlines="solid">
+        <mtr>
+          <mtd>
+            <mn>1</mn>
+          </mtd>
+          <mtd>
+            <mn>2</mn>
+          </mtd>
+          <mtd>
+            <mn>3</mn>
+          </mtd>
+          <mtd>
+            <mn>4</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>5</mn>
+          </mtd>
+          <mtd>
+            <mn>6</mn>
+          </mtd>
+          <mtd>
+            <mn>7</mn>
+          </mtd>
+          <mtd>
+            <mn>8</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>9</mn>
+          </mtd>
+          <mtd>
+            <mn>10</mn>
+          </mtd>
+          <mtd>
+            <mn>11</mn>
+          </mtd>
+          <mtd>
+            <mn>12</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>13</mn>
+          </mtd>
+          <mtd>
+            <mn>14</mn>
+          </mtd>
+          <mtd>
+            <mn>15</mn>
+          </mtd>
+          <mtd>
+            <mn>16</mn>
+          </mtd>
+        </mtr>
+      </mtable>
+    </math>
+
+
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/columnlines-1c.html b/testing/web-platform/mozilla/tests/mathml/tables/columnlines-1c.html
new file mode 100644
index 0000000000..b6bdc39342
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/columnlines-1c.html
@@ -0,0 +1,78 @@
+<!-- -*- mode: HTML; tab-width: 2; indent-tabs-mode: nil; -*- -->
+<!-- vim: set tabstop=2 expandtab shiftwidth=2 textwidth=80:  -->
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>mtable frame</title>
+    <!-- Copyright (c) 2011 Design Science, Inc.
+         License: Apache License 2.0 -->
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
+    <link rel="mismatch" href="columnlines-1-ref.html"/>
+  </head>
+
+  <body>
+
+    <math>
+      <mtable columnlines="dashed">
+        <mtr>
+          <mtd>
+            <mn>1</mn>
+          </mtd>
+          <mtd>
+            <mn>2</mn>
+          </mtd>
+          <mtd>
+            <mn>3</mn>
+          </mtd>
+          <mtd>
+            <mn>4</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>5</mn>
+          </mtd>
+          <mtd>
+            <mn>6</mn>
+          </mtd>
+          <mtd>
+            <mn>7</mn>
+          </mtd>
+          <mtd>
+            <mn>8</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>9</mn>
+          </mtd>
+          <mtd>
+            <mn>10</mn>
+          </mtd>
+          <mtd>
+            <mn>11</mn>
+          </mtd>
+          <mtd>
+            <mn>12</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>13</mn>
+          </mtd>
+          <mtd>
+            <mn>14</mn>
+          </mtd>
+          <mtd>
+            <mn>15</mn>
+          </mtd>
+          <mtd>
+            <mn>16</mn>
+          </mtd>
+        </mtr>
+      </mtable>
+    </math>
+
+
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/columnlines-2-ref.html b/testing/web-platform/mozilla/tests/mathml/tables/columnlines-2-ref.html
new file mode 100644
index 0000000000..84c96c5fe3
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/columnlines-2-ref.html
@@ -0,0 +1,41 @@
+<!-- -*- mode: HTML; tab-width: 2; indent-tabs-mode: nil; -*- -->
+<!-- vim: set tabstop=2 expandtab shiftwidth=2 textwidth=80:  -->
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>mtable frame</title>
+    <!-- Copyright (c) 2011 Design Science, Inc.
+         License: Apache License 2.0 -->
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
+  </head>
+
+  <body>
+
+    <math>
+      <mtable columnlines="solid none dashed dashed dashed">
+        <mtr>
+          <mtd>
+            <mn>1</mn>
+          </mtd>
+          <mtd>
+            <mn>2</mn>
+          </mtd>
+          <mtd>
+            <mn>3</mn>
+          </mtd>
+          <mtd>
+            <mn>4</mn>
+          </mtd>
+          <mtd>
+            <mn>5</mn>
+          </mtd>
+          <mtd>
+            <mn>*</mn>
+          </mtd>
+        </mtr>
+      </mtable>
+    </math>
+
+
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/columnlines-2a.html b/testing/web-platform/mozilla/tests/mathml/tables/columnlines-2a.html
new file mode 100644
index 0000000000..9b4b681b36
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/columnlines-2a.html
@@ -0,0 +1,42 @@
+<!-- -*- mode: HTML; tab-width: 2; indent-tabs-mode: nil; -*- -->
+<!-- vim: set tabstop=2 expandtab shiftwidth=2 textwidth=80:  -->
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>mtable frame</title>
+    <!-- Copyright (c) 2011 Design Science, Inc.
+         License: Apache License 2.0 -->
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
+    <link rel="match" href="columnlines-2-ref.html"/>
+  </head>
+
+  <body>
+
+    <math>
+      <mtable columnlines="solid none dashed">
+        <mtr>
+          <mtd>
+            <mn>1</mn>
+          </mtd>
+          <mtd>
+            <mn>2</mn>
+          </mtd>
+          <mtd>
+            <mn>3</mn>
+          </mtd>
+          <mtd>
+            <mn>4</mn>
+          </mtd>
+          <mtd>
+            <mn>5</mn>
+          </mtd>
+          <mtd>
+            <mn>*</mn>
+          </mtd>
+        </mtr>
+      </mtable>
+    </math>
+
+
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/columnlines-2b.html b/testing/web-platform/mozilla/tests/mathml/tables/columnlines-2b.html
new file mode 100644
index 0000000000..db595557dd
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/columnlines-2b.html
@@ -0,0 +1,42 @@
+<!-- -*- mode: HTML; tab-width: 2; indent-tabs-mode: nil; -*- -->
+<!-- vim: set tabstop=2 expandtab shiftwidth=2 textwidth=80:  -->
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>mtable frame</title>
+    <!-- Copyright (c) 2011 Design Science, Inc.
+         License: Apache License 2.0 -->
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
+    <link rel="match" href="columnlines-2-ref.html"/>
+  </head>
+
+  <body>
+
+    <math>
+      <mtable columnlines="solid none dashed dashed dashed solid solid none solid none">
+        <mtr>
+          <mtd>
+            <mn>1</mn>
+          </mtd>
+          <mtd>
+            <mn>2</mn>
+          </mtd>
+          <mtd>
+            <mn>3</mn>
+          </mtd>
+          <mtd>
+            <mn>4</mn>
+          </mtd>
+          <mtd>
+            <mn>5</mn>
+          </mtd>
+          <mtd>
+            <mn>*</mn>
+          </mtd>
+        </mtr>
+      </mtable>
+    </math>
+
+
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/columnlines-3-1-ref.html b/testing/web-platform/mozilla/tests/mathml/tables/columnlines-3-1-ref.html
new file mode 100644
index 0000000000..ce49f5dad4
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/columnlines-3-1-ref.html
@@ -0,0 +1,32 @@
+<!-- -*- mode: HTML; tab-width: 2; indent-tabs-mode: nil; -*- -->
+<!-- vim: set tabstop=2 expandtab shiftwidth=2 textwidth=80:  -->
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>mtable frame</title>
+    <!-- Copyright (c) 2011 Design Science, Inc.
+         License: Apache License 2.0 -->
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
+  </head>
+
+  <body>
+
+  <div style="position: absolute; top: 5px; left: 5px;">
+    <math>
+      <mtable columnlines="dashed">
+        <mtr>
+          <mtd><mspace height="150px"></mspace></mtd>
+          <mtd><mspace height="150px"></mspace></mtd>
+        </mtr>
+      </mtable>
+    </math>
+  </div>
+
+  <div style="position: absolute; top: 5px; left: 0px;
+              width: 50px; height: 50px; background: red;"></div>
+
+  <div style="position: absolute; top: 115px; left: 0px;
+              width: 50px; height: 55px; background: red;"></div>
+
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/columnlines-3-1.html b/testing/web-platform/mozilla/tests/mathml/tables/columnlines-3-1.html
new file mode 100644
index 0000000000..d919933c21
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/columnlines-3-1.html
@@ -0,0 +1,49 @@
+<!-- -*- mode: HTML; tab-width: 2; indent-tabs-mode: nil; -*- -->
+<!-- vim: set tabstop=2 expandtab shiftwidth=2 textwidth=80:  -->
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>mtable frame</title>
+    <!-- Copyright (c) 2011 Design Science, Inc.
+         License: Apache License 2.0 -->
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
+    <link rel="mismatch" href="columnlines-3-1-ref.html"/>
+  </head>
+
+  <body>
+
+  <!-- We assume there is a gap of more than 1px between dashes. Hence
+       putting two dashed lines with only one pixel of difference in their
+       vertical coordinates should not render the same as one dashed line
+       alone. The opposite is true for continuous line.
+       The red squares allow to ignore the difference at the bounds -->
+
+  <div style="position: absolute; top: 5px; left: 5px;">
+    <math>
+      <mtable  columnlines="dashed">
+        <mtr>
+          <mtd><mspace height="150px"></mspace></mtd>
+          <mtd><mspace height="150px"></mspace></mtd>
+        </mtr>
+      </mtable>
+    </math>
+  </div>
+
+  <div style="position: absolute; top: 6px; left: 5px;">
+    <math>
+      <mtable columnlines="dashed">
+        <mtr>
+          <mtd><mspace height="150px"></mspace></mtd>
+          <mtd><mspace height="150px"></mspace></mtd>
+        </mtr>
+      </mtable>
+    </math>
+  </div>
+
+  <div style="position: absolute; top: 5px; left: 0px;
+              width: 50px; height: 50px; background: red;"></div>
+
+  <div style="position: absolute; top: 115px; left: 0px;
+              width: 50px; height: 55px; background: red;"></div>
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/columnlines-3-2-ref.html b/testing/web-platform/mozilla/tests/mathml/tables/columnlines-3-2-ref.html
new file mode 100644
index 0000000000..6549ad5263
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/columnlines-3-2-ref.html
@@ -0,0 +1,32 @@
+<!-- -*- mode: HTML; tab-width: 2; indent-tabs-mode: nil; -*- -->
+<!-- vim: set tabstop=2 expandtab shiftwidth=2 textwidth=80:  -->
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>mtable frame</title>
+    <!-- Copyright (c) 2011 Design Science, Inc.
+         License: Apache License 2.0 -->
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
+  </head>
+
+  <body>
+
+  <div style="position: absolute; top: 5px; left: 5px;">
+    <math>
+      <mtable columnlines="solid">
+        <mtr>
+          <mtd><mspace height="150px"></mspace></mtd>
+          <mtd><mspace height="150px"></mspace></mtd>
+        </mtr>
+      </mtable>
+    </math>
+  </div>
+
+  <div style="position: absolute; top: 5px; left: 0px;
+              width: 50px; height: 50px; background: red;"></div>
+
+  <div style="position: absolute; top: 115px; left: 0px;
+              width: 50px; height: 55px; background: red;"></div>
+
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/columnlines-3-2.html b/testing/web-platform/mozilla/tests/mathml/tables/columnlines-3-2.html
new file mode 100644
index 0000000000..e95de7c581
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/columnlines-3-2.html
@@ -0,0 +1,49 @@
+<!-- -*- mode: HTML; tab-width: 2; indent-tabs-mode: nil; -*- -->
+<!-- vim: set tabstop=2 expandtab shiftwidth=2 textwidth=80:  -->
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>mtable frame</title>
+    <!-- Copyright (c) 2011 Design Science, Inc.
+         License: Apache License 2.0 -->
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
+    <link rel="match" href="columnlines-3-2-ref.html"/>
+  </head>
+
+  <body>
+
+  <!-- We assume there is a gap of more than 1px between dashes. Hence
+       putting two dashed lines with only one pixel of difference in their
+       vertical coordinates should not render the same as one dashed line
+       alone. The opposite is true for continuous line.
+       The red squares allow to ignore the difference at the bounds -->
+
+  <div style="position: absolute; top: 5px; left: 5px;">
+    <math>
+      <mtable  columnlines="solid">
+        <mtr>
+          <mtd><mspace height="150px"></mspace></mtd>
+          <mtd><mspace height="150px"></mspace></mtd>
+        </mtr>
+      </mtable>
+    </math>
+  </div>
+
+  <div style="position: absolute; top: 6px; left: 5px;">
+    <math>
+      <mtable columnlines="solid">
+        <mtr>
+          <mtd><mspace height="150px"></mspace></mtd>
+          <mtd><mspace height="150px"></mspace></mtd>
+        </mtr>
+      </mtable>
+    </math>
+  </div>
+
+  <div style="position: absolute; top: 5px; left: 0px;
+              width: 50px; height: 50px; background: red;"></div>
+
+  <div style="position: absolute; top: 115px; left: 0px;
+              width: 50px; height: 55px; background: red;"></div>
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/dir-6a-ref.html b/testing/web-platform/mozilla/tests/mathml/tables/dir-6a-ref.html
new file mode 100644
index 0000000000..d66b9c2710
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/dir-6a-ref.html
@@ -0,0 +1,67 @@
+<!DOCTYPE html>
+<html>
+  <head><title>Test dir=rtl</title></head>
+  <body>
+
+    <p>
+      mtable:
+      <math>
+        <mtable rowspacing="">
+          <mtr>
+            <mtd>
+              <mtext>c</mtext>
+            </mtd>
+            <mtd>
+              <mtext>b</mtext>
+            </mtd>
+            <mtd>
+              <mtext>a</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>f</mtext>
+            </mtd>
+            <mtd>
+              <mtext>e</mtext>
+            </mtd>
+            <mtd>
+              <mtext>d</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </math>
+    </p>
+
+    <p>
+      mtable:
+      <math>
+        <mtable frame="solid">
+          <mtr>
+            <mtd>
+              <mtext>c</mtext>
+            </mtd>
+            <mtd>
+              <mtext>b</mtext>
+            </mtd>
+            <mtd>
+              <mtext>a</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>f</mtext>
+            </mtd>
+            <mtd>
+              <mtext>e</mtext>
+            </mtd>
+            <mtd>
+              <mtext>d</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </math>
+    </p>
+
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/dir-6a.html b/testing/web-platform/mozilla/tests/mathml/tables/dir-6a.html
new file mode 100644
index 0000000000..d71d289cf0
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/dir-6a.html
@@ -0,0 +1,70 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Test dir=rtl</title>
+    <link rel="match" href="dir-6a-ref.html"/>
+  </head>
+  <body>
+
+    <p>
+      mtable:
+      <math dir="rtl">
+        <mtable rowspacing="">
+          <mtr>
+            <mtd>
+              <mtext>a</mtext>
+            </mtd>
+            <mtd>
+              <mtext>b</mtext>
+            </mtd>
+            <mtd>
+              <mtext>c</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>d</mtext>
+            </mtd>
+            <mtd>
+              <mtext>e</mtext>
+            </mtd>
+            <mtd>
+              <mtext>f</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </math>
+    </p>
+
+    <p>
+      mtable:
+      <math dir="rtl">
+        <mtable frame="solid">
+          <mtr>
+            <mtd>
+              <mtext>a</mtext>
+            </mtd>
+            <mtd>
+              <mtext>b</mtext>
+            </mtd>
+            <mtd>
+              <mtext>c</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>d</mtext>
+            </mtd>
+            <mtd>
+              <mtext>e</mtext>
+            </mtd>
+            <mtd>
+              <mtext>f</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </math>
+    </p>
+
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/mstyle-align-ref.html b/testing/web-platform/mozilla/tests/mathml/tables/mstyle-align-ref.html
new file mode 100644
index 0000000000..800ba5b2d3
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/mstyle-align-ref.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>align attribute on mstyle/math</title>
+<meta name="assert" content="align attribute on mstyle/math does not apply to mtable descendants." />
+<body>
+  <math align="baseline">
+    <mstyle align="baseline">
+      <mrow>
+        <mtext>_</mtext>
+        <mtable>
+          <mtr>
+            <mtd>
+              <mtext>&#x2015;</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>&#x2015;</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+        <mtext>_</mtext>
+      </mrow>
+    </mstyle>
+  </math>
+</body>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/mstyle-align.html b/testing/web-platform/mozilla/tests/mathml/tables/mstyle-align.html
new file mode 100644
index 0000000000..396dbc599c
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/mstyle-align.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>align attribute on mstyle/math</title>
+<link rel="match" href="mstyle-align-ref.html" />
+<meta name="assert" content="align attribute on mstyle/math does not apply to mtable descendants." />
+<body>
+  <math align="baseline">
+    <mstyle align="baseline">
+      <mrow>
+        <mtext>_</mtext>
+        <mtable>
+          <mtr>
+            <mtd>
+              <mtext>&#x2015;</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>&#x2015;</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+        <mtext>_</mtext>
+      </mrow>
+    </mstyle>
+  </math>
+</body>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/mtable-align-negative-rownumber-2-ref.html b/testing/web-platform/mozilla/tests/mathml/tables/mtable-align-negative-rownumber-2-ref.html
new file mode 100644
index 0000000000..0d14017e54
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/mtable-align-negative-rownumber-2-ref.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<head>
+<title>mtable align attribute: negative rownumber</title>
+</head>
+
+<body>
+
+<div>
+<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
+<mrow>
+<mtable align="axis 0"><mtr><mtd><mi>&nbsp;</mi></mtd></mtr> <mtr><mtd><mi>&nbsp;</mi></mtd></mtr> <mtr><mtd><mi>a</mi></mtd> <mtd><mi>b</mi></mtd> <mtd><mi>c</mi></mtd></mtr></mtable>
+<mo>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</mo>
+<mtable align="axis 0"><mtr><mtd><mi>&nbsp;</mi></mtd></mtr> <mtr><mtd><mi>a</mi></mtd> <mtd><mi>b</mi></mtd> <mtd><mi>c</mi></mtd></mtr> <mtr><mtd><mi>d</mi></mtd> <mtd><mi>e</mi></mtd> <mtd><mi>f</mi></mtd></mtr></mtable>
+<mo>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</mo>
+<mtable align="axis 0"><mtr><mtd><mi>a</mi></mtd> <mtd><mi>b</mi></mtd> <mtd><mi>c</mi></mtd></mtr> <mtr><mtd><mi>d</mi></mtd> <mtd><mi>e</mi></mtd> <mtd><mi>f</mi></mtd></mtr> <mtr><mtd><mi>g</mi></mtd> <mtd><mi>h</mi></mtd> <mtd><mi>i</mi></mtd></mtr></mtable>
+</mrow>
+</math>
+</div>
+
+</body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/mtable-align-negative-rownumber-2.html b/testing/web-platform/mozilla/tests/mathml/tables/mtable-align-negative-rownumber-2.html
new file mode 100644
index 0000000000..a3e5b1c7cf
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/mtable-align-negative-rownumber-2.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<head>
+<title>mtable align attribute: negative rownumber</title>
+<link rel="match" href="mtable-align-negative-rownumber-2-ref.html"/>
+</head>
+
+<body>
+
+<div>
+<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
+<mrow>
+<mtable align="axis -1"><mtr><mtd><mi>a</mi></mtd> <mtd><mi>b</mi></mtd> <mtd><mi>c</mi></mtd></mtr></mtable>
+<mo>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</mo>
+<mtable align="axis -1"><mtr><mtd><mi>a</mi></mtd> <mtd><mi>b</mi></mtd> <mtd><mi>c</mi></mtd></mtr> <mtr><mtd><mi>d</mi></mtd> <mtd><mi>e</mi></mtd> <mtd><mi>f</mi></mtd></mtr></mtable>
+<mo>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</mo>
+<mtable align="axis -1"><mtr><mtd><mi>a</mi></mtd> <mtd><mi>b</mi></mtd> <mtd><mi>c</mi></mtd></mtr> <mtr><mtd><mi>d</mi></mtd> <mtd><mi>e</mi></mtd> <mtd><mi>f</mi></mtd></mtr> <mtr><mtd><mi>g</mi></mtd> <mtd><mi>h</mi></mtd> <mtd><mi>i</mi></mtd></mtr></mtable>
+</mrow>
+</math>
+</div>
+
+</body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/mtable-align-negative-rownumber-ref.html b/testing/web-platform/mozilla/tests/mathml/tables/mtable-align-negative-rownumber-ref.html
new file mode 100644
index 0000000000..ebf3bf8780
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/mtable-align-negative-rownumber-ref.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<head>
+<title>mtable align attribute: negative rownumber</title>
+</head>
+
+<body>
+
+<div>
+<math xmlns="http://www.w3.org/1998/Math/MathML" display="block"><mrow>
+<mtable align="axis 3"><mtr><mtd><mi>a</mi></mtd> <mtd><mi>b</mi></mtd> <mtd><mi>c</mi></mtd></mtr> <mtr><mtd><mi>d</mi></mtd> <mtd><mi>e</mi></mtd> <mtd><mi>f</mi></mtd></mtr> <mtr><mtd><mi>g</mi></mtd> <mtd><mi>h</mi></mtd> <mtd><mi>i</mi></mtd></mtr></mtable><mo>=</mo>
+<mtable align="axis 1"><mtr><mtd><mi>a</mi></mtd> <mtd><mi>b</mi></mtd> <mtd><mi>c</mi></mtd></mtr> <mtr><mtd><mi>d</mi></mtd> <mtd><mi>e</mi></mtd> <mtd><mi>f</mi></mtd></mtr> <mtr><mtd><mi>g</mi></mtd> <mtd><mi>h</mi></mtd> <mtd><mi>i</mi></mtd></mtr></mtable></mrow></math>
+</div>
+
+</body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/mtable-align-negative-rownumber.html b/testing/web-platform/mozilla/tests/mathml/tables/mtable-align-negative-rownumber.html
new file mode 100644
index 0000000000..dc654045ab
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/mtable-align-negative-rownumber.html
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<head>
+<title>mtable align attribute: negative rownumber</title>
+<link rel="match" href="mtable-align-negative-rownumber-ref.html"/>
+</head>
+
+<body>
+
+<div>
+<math xmlns="http://www.w3.org/1998/Math/MathML" display="block"><mrow>
+<mtable align="axis -1"><mtr><mtd><mi>a</mi></mtd> <mtd><mi>b</mi></mtd> <mtd><mi>c</mi></mtd></mtr> <mtr><mtd><mi>d</mi></mtd> <mtd><mi>e</mi></mtd> <mtd><mi>f</mi></mtd></mtr> <mtr><mtd><mi>g</mi></mtd> <mtd><mi>h</mi></mtd> <mtd><mi>i</mi></mtd></mtr></mtable><mo>=</mo>
+<mtable align="axis 1"><mtr><mtd><mi>a</mi></mtd> <mtd><mi>b</mi></mtd> <mtd><mi>c</mi></mtd></mtr> <mtr><mtd><mi>d</mi></mtd> <mtd><mi>e</mi></mtd> <mtd><mi>f</mi></mtd></mtr> <mtr><mtd><mi>g</mi></mtd> <mtd><mi>h</mi></mtd> <mtd><mi>i</mi></mtd></mtr></mtable></mrow></math>
+</div>
+
+</body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/mtable-align-whitespace-ref.html b/testing/web-platform/mozilla/tests/mathml/tables/mtable-align-whitespace-ref.html
new file mode 100644
index 0000000000..df39badc67
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/mtable-align-whitespace-ref.html
@@ -0,0 +1,342 @@
+<!DOCTYPE html>
+<head>
+<title>mtable align : WhiteSpace Check</title>
+    <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+    <style>
+      math {
+          font: 25px Ahem;
+      }
+    </style>
+</head>
+
+<body>
+
+    <math>
+
+        <mtext>X</mtext>
+        <mo>=</mo>
+        <mtable frame="solid" align="center -3">
+            <mtr>
+                 <mtd><mtext>A</mtext></mtd>
+                 <mtd><mtext>B</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>C</mtext></mtd>
+                 <mtd><mtext>D</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>E</mtext></mtd>
+                 <mtd><mtext>F</mtext></mtd>
+            </mtr>
+        </mtable>
+
+    </math>
+
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+
+    <math>
+
+        <mtext>X</mtext>
+        <mo>=</mo>
+        <mtable frame="solid" align="center -3">
+            <mtr>
+                 <mtd><mtext>A</mtext></mtd>
+                 <mtd><mtext>B</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>C</mtext></mtd>
+                 <mtd><mtext>D</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>E</mtext></mtd>
+                 <mtd><mtext>F</mtext></mtd>
+            </mtr>
+        </mtable>
+
+    </math>
+
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+
+    <math>
+
+        <mtext>X</mtext>
+        <mo>=</mo>
+        <mtable frame="solid" align="center -3">
+            <mtr>
+                 <mtd><mtext>A</mtext></mtd>
+                 <mtd><mtext>B</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>C</mtext></mtd>
+                 <mtd><mtext>D</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>E</mtext></mtd>
+                 <mtd><mtext>F</mtext></mtd>
+            </mtr>
+        </mtable>
+
+    </math>
+
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+
+    <math>
+
+        <mtext>X</mtext>
+        <mo>=</mo>
+        <mtable frame="solid" align="center -3">
+            <mtr>
+                 <mtd><mtext>A</mtext></mtd>
+                 <mtd><mtext>B</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>C</mtext></mtd>
+                 <mtd><mtext>D</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>E</mtext></mtd>
+                 <mtd><mtext>F</mtext></mtd>
+            </mtr>
+        </mtable>
+
+    </math>
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+
+   <math>
+
+        <mtext>X</mtext>
+        <mo>=</mo>
+        <mtable frame="solid" align="center -3">
+            <mtr>
+                 <mtd><mtext>A</mtext></mtd>
+                 <mtd><mtext>B</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>C</mtext></mtd>
+                 <mtd><mtext>D</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>E</mtext></mtd>
+                 <mtd><mtext>F</mtext></mtd>
+            </mtr>
+        </mtable>
+
+    </math>
+
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+
+    <math>
+
+        <mtext>X</mtext>
+        <mo>=</mo>
+        <mtable frame="solid" align="center -3">
+            <mtr>
+                 <mtd><mtext>A</mtext></mtd>
+                 <mtd><mtext>B</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>C</mtext></mtd>
+                 <mtd><mtext>D</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>E</mtext></mtd>
+                 <mtd><mtext>F</mtext></mtd>
+            </mtr>
+        </mtable>
+
+    </math>
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+
+    <math>
+
+        <mtext>X</mtext>
+        <mo>=</mo>
+        <mtable frame="solid" align="center -3">
+            <mtr>
+                 <mtd><mtext>A</mtext></mtd>
+                 <mtd><mtext>B</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>C</mtext></mtd>
+                 <mtd><mtext>D</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>E</mtext></mtd>
+                 <mtd><mtext>F</mtext></mtd>
+            </mtr>
+        </mtable>
+
+    </math>
+
+<br><br><br>
+
+    <math>
+
+        <mtext>X</mtext>
+        <mo>=</mo>
+        <mtable frame="solid" align="center -3">
+            <mtr>
+                 <mtd><mtext>A</mtext></mtd>
+                 <mtd><mtext>B</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>C</mtext></mtd>
+                 <mtd><mtext>D</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>E</mtext></mtd>
+                 <mtd><mtext>F</mtext></mtd>
+            </mtr>
+        </mtable>
+
+    </math>
+
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+
+
+    <math>
+
+        <mtext>X</mtext>
+        <mo>=</mo>
+        <mtable frame="solid" align="center -3">
+            <mtr>
+                 <mtd><mtext>A</mtext></mtd>
+                 <mtd><mtext>B</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>C</mtext></mtd>
+                 <mtd><mtext>D</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>E</mtext></mtd>
+                 <mtd><mtext>F</mtext></mtd>
+            </mtr>
+        </mtable>
+
+    </math>
+
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+
+
+    <math>
+
+        <mtext>X</mtext>
+        <mo>=</mo>
+        <mtable frame="solid" align="center -3">
+            <mtr>
+                 <mtd><mtext>A</mtext></mtd>
+                 <mtd><mtext>B</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>C</mtext></mtd>
+                 <mtd><mtext>D</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>E</mtext></mtd>
+                 <mtd><mtext>F</mtext></mtd>
+            </mtr>
+        </mtable>
+
+    </math>
+
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+
+
+    <math>
+
+        <mtext>X</mtext>
+        <mo>=</mo>
+        <mtable frame="solid" align="center -3">
+            <mtr>
+                 <mtd><mtext>A</mtext></mtd>
+                 <mtd><mtext>B</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>C</mtext></mtd>
+                 <mtd><mtext>D</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>E</mtext></mtd>
+                 <mtd><mtext>F</mtext></mtd>
+            </mtr>
+        </mtable>
+
+    </math>
+
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+
+
+    <math>
+
+        <mtext>X</mtext>
+        <mo>=</mo>
+        <mtable frame="solid" align="center -3">
+            <mtr>
+                 <mtd><mtext>A</mtext></mtd>
+                 <mtd><mtext>B</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>C</mtext></mtd>
+                 <mtd><mtext>D</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>E</mtext></mtd>
+                 <mtd><mtext>F</mtext></mtd>
+            </mtr>
+        </mtable>
+
+    </math>
+
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+
+
+    <math>
+
+        <mtext>X</mtext>
+        <mo>=</mo>
+        <mtable frame="solid" align="center -3">
+            <mtr>
+                 <mtd><mtext>A</mtext></mtd>
+                 <mtd><mtext>B</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>C</mtext></mtd>
+                 <mtd><mtext>D</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>E</mtext></mtd>
+                 <mtd><mtext>F</mtext></mtd>
+            </mtr>
+        </mtable>
+
+    </math>
+
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+
+    <math>
+
+        <mtext>X</mtext>
+        <mo>=</mo>
+        <mtable frame="solid" align="center -3">
+            <mtr>
+                 <mtd><mtext>A</mtext></mtd>
+                 <mtd><mtext>B</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>C</mtext></mtd>
+                 <mtd><mtext>D</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>E</mtext></mtd>
+                 <mtd><mtext>F</mtext></mtd>
+            </mtr>
+        </mtable>
+
+    </math>
+
+
+
+
+</body>
+
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/mtable-align-whitespace.html b/testing/web-platform/mozilla/tests/mathml/tables/mtable-align-whitespace.html
new file mode 100644
index 0000000000..47d29e233a
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/mtable-align-whitespace.html
@@ -0,0 +1,339 @@
+<!DOCTYPE html>
+<head>
+<title>mtable align : WhiteSpace Check</title>
+    <link rel="match" href="mtable-align-whitespace-ref.html"/>
+    <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+    <style>
+      math {
+          font: 25px Ahem;
+      }
+    </style>
+</head>
+
+<body>
+
+    <math>
+
+        <mtext>X</mtext>
+        <mo>=</mo>
+        <mtable frame="solid" align="center-3">
+            <mtr>
+                 <mtd><mtext>A</mtext></mtd>
+                 <mtd><mtext>B</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>C</mtext></mtd>
+                 <mtd><mtext>D</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>E</mtext></mtd>
+                 <mtd><mtext>F</mtext></mtd>
+            </mtr>
+        </mtable>
+
+    </math>
+
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+
+    <math>
+
+        <mtext>X</mtext>
+        <mo>=</mo>
+        <mtable frame="solid" align="center-3  ">
+            <mtr>
+                 <mtd><mtext>A</mtext></mtd>
+                 <mtd><mtext>B</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>C</mtext></mtd>
+                 <mtd><mtext>D</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>E</mtext></mtd>
+                 <mtd><mtext>F</mtext></mtd>
+            </mtr>
+        </mtable>
+
+    </math>
+
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+
+    <math>
+
+        <mtext>X</mtext>
+        <mo>=</mo>
+        <mtable frame="solid" align="  center-3">
+            <mtr>
+                 <mtd><mtext>A</mtext></mtd>
+                 <mtd><mtext>B</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>C</mtext></mtd>
+                 <mtd><mtext>D</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>E</mtext></mtd>
+                 <mtd><mtext>F</mtext></mtd>
+            </mtr>
+        </mtable>
+
+    </math>
+
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+
+    <math>
+
+        <mtext>X</mtext>
+        <mo>=</mo>
+        <mtable frame="solid" align="  center-3  ">
+            <mtr>
+                 <mtd><mtext>A</mtext></mtd>
+                 <mtd><mtext>B</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>C</mtext></mtd>
+                 <mtd><mtext>D</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>E</mtext></mtd>
+                 <mtd><mtext>F</mtext></mtd>
+            </mtr>
+        </mtable>
+
+    </math>
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+
+   <math>
+
+        <mtext>X</mtext>
+        <mo>=</mo>
+        <mtable frame="solid" align="  center   -3">
+            <mtr>
+                 <mtd><mtext>A</mtext></mtd>
+                 <mtd><mtext>B</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>C</mtext></mtd>
+                 <mtd><mtext>D</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>E</mtext></mtd>
+                 <mtd><mtext>F</mtext></mtd>
+            </mtr>
+        </mtable>
+
+    </math>
+
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+
+    <math>
+
+        <mtext>X</mtext>
+        <mo>=</mo>
+        <mtable frame="solid" align="center  -3  ">
+            <mtr>
+                 <mtd><mtext>A</mtext></mtd>
+                 <mtd><mtext>B</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>C</mtext></mtd>
+                 <mtd><mtext>D</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>E</mtext></mtd>
+                 <mtd><mtext>F</mtext></mtd>
+            </mtr>
+        </mtable>
+
+    </math>
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+
+    <math>
+
+        <mtext>X</mtext>
+        <mo>=</mo>
+        <mtable frame="solid" align="  center  -3  ">
+            <mtr>
+                 <mtd><mtext>A</mtext></mtd>
+                 <mtd><mtext>B</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>C</mtext></mtd>
+                 <mtd><mtext>D</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>E</mtext></mtd>
+                 <mtd><mtext>F</mtext></mtd>
+            </mtr>
+        </mtable>
+
+    </math>
+
+
+<br><br><br>
+
+    <math>
+
+        <mtext>X</mtext>
+        <mo>=</mo>
+        <mtable frame="solid" align="&#xA&#xD;&#x20;center&#xA&#xD;&#x20;-3&#xA&#xD;&#x9;">
+            <mtr>
+                 <mtd><mtext>A</mtext></mtd>
+                 <mtd><mtext>B</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>C</mtext></mtd>
+                 <mtd><mtext>D</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>E</mtext></mtd>
+                 <mtd><mtext>F</mtext></mtd>
+            </mtr>
+        </mtable>
+
+    </math>
+
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+
+
+    <math>
+
+        <mtext>X</mtext>
+        <mo>=</mo>
+        <mtable frame="solid" align="&#xA&#xD;&#x9;&#x20;center&#xA&#xD;&#x9;&#x20;-3&#xA&#xD;&#x9;&#x20;">
+            <mtr>
+                 <mtd><mtext>A</mtext></mtd>
+                 <mtd><mtext>B</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>C</mtext></mtd>
+                 <mtd><mtext>D</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>E</mtext></mtd>
+                 <mtd><mtext>F</mtext></mtd>
+            </mtr>
+        </mtable>
+
+    </math>
+
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+
+    <math>
+
+        <mtext>X</mtext>
+        <mo>=</mo>
+        <mtable frame="solid" align="center-3&#xA&#xD;&#x9;&#x20;">
+            <mtr>
+                 <mtd><mtext>A</mtext></mtd>
+                 <mtd><mtext>B</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>C</mtext></mtd>
+                 <mtd><mtext>D</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>E</mtext></mtd>
+                 <mtd><mtext>F</mtext></mtd>
+            </mtr>
+        </mtable>
+
+    </math>
+
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+
+    <math>
+
+        <mtext>X</mtext>
+        <mo>=</mo>
+        <mtable frame="solid" align="&#xA&#xD;&#x9;&#x20;center-3">
+            <mtr>
+                 <mtd><mtext>A</mtext></mtd>
+                 <mtd><mtext>B</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>C</mtext></mtd>
+                 <mtd><mtext>D</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>E</mtext></mtd>
+                 <mtd><mtext>F</mtext></mtd>
+            </mtr>
+        </mtable>
+
+    </math>
+
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+
+
+    <math>
+
+        <mtext>X</mtext>
+        <mo>=</mo>
+        <mtable frame="solid" align="&#xA&#xD;&#x9;&#x20;center-3&#xA&#xD;&#x9;&#x20;">
+            <mtr>
+                 <mtd><mtext>A</mtext></mtd>
+                 <mtd><mtext>B</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>C</mtext></mtd>
+                 <mtd><mtext>D</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>E</mtext></mtd>
+                 <mtd><mtext>F</mtext></mtd>
+            </mtr>
+        </mtable>
+
+    </math>
+
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+
+
+    <math>
+
+        <mtext>X</mtext>
+        <mo>=</mo>
+        <mtable frame="solid" align="&#xA&#xD;&#x9;&#x20;center&#xA&#xD;&#x9;&#x20;-3">
+            <mtr>
+                 <mtd><mtext>A</mtext></mtd>
+                 <mtd><mtext>B</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>C</mtext></mtd>
+                 <mtd><mtext>D</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>E</mtext></mtd>
+                 <mtd><mtext>F</mtext></mtd>
+            </mtr>
+        </mtable>
+
+    </math>
+
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+
+
+    <math>
+
+        <mtext>X</mtext>
+        <mo>=</mo>
+        <mtable frame="solid" align="center&#xA&#xD;&#x9;&#x20;-3&#xA&#xD;&#x9;&#x20;">
+            <mtr>
+                 <mtd><mtext>A</mtext></mtd>
+                 <mtd><mtext>B</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>C</mtext></mtd>
+                 <mtd><mtext>D</mtext></mtd>
+            </mtr>
+            <mtr>
+                 <mtd><mtext>E</mtext></mtd>
+                 <mtd><mtext>F</mtext></mtd>
+            </mtr>
+        </mtable>
+
+    </math>
+
+</body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnalign-multi-mtable-dynamic.html b/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnalign-multi-mtable-dynamic.html
new file mode 100644
index 0000000000..a2e6509732
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnalign-multi-mtable-dynamic.html
@@ -0,0 +1,147 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+  <head>
+    <title>Test MathML columnalign</title>
+    <link rel="match" href="mtable-columnalign-multi-ref.html"/>
+    <script type="text/javascript">
+      function doTest()
+      {
+        var table1 = document.getElementById("table1");
+        var table2 = document.getElementById("table2");
+        var table3 = document.getElementById("table3");
+
+        // Table 1 setup
+        table1.setAttribute("columnalign", "left center right");
+        // Table 2 setup
+        table2.setAttribute("columnalign", "right left center");
+        // Table 3 setup
+        table3.setAttribute("columnalign", "center right left");
+
+        document.documentElement.removeAttribute("class");
+      }
+      document.documentElement.addEventListener("TestRendered", doTest);
+    </script>
+  </head>
+  <body>
+    <b>columnalign="left center right"</b> <br />
+    <math>
+      <mstyle>
+        <mtable id="table1">
+          <mtr>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+            <mtext>1234567</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math> <br />
+    <b>columnalign="right left center"</b> <br />
+    <math>
+      <mstyle>
+        <mtable id="table2">
+          <mtr>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+            <mtext>1234567</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math> <br />
+    <b>columnalign="center right left"</b> <br />
+    <math>
+      <mstyle>
+        <mtable id="table3">
+          <mtr>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+            <mtext>1234567</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math>
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnalign-multi-mtable.html b/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnalign-multi-mtable.html
new file mode 100644
index 0000000000..eb188cbe8f
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnalign-multi-mtable.html
@@ -0,0 +1,129 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Test MathML columnalign</title>
+    <link rel="match" href="mtable-columnalign-multi-ref.html"/>
+  </head>
+  <body>
+    <b>columnalign="left center right"</b> <br />
+    <math>
+      <mstyle>
+        <mtable columnalign="left center right">
+          <mtr>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+            <mtext>1234567</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math> <br />
+    <b>columnalign="right left center"</b> <br />
+    <math>
+      <mstyle>
+        <mtable columnalign="right left center">
+          <mtr>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+            <mtext>1234567</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math> <br />
+    <b>columnalign="center right left"</b> <br />
+    <math>
+      <mstyle>
+        <mtable columnalign="center right left">
+          <mtr>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+            <mtext>1234567</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math>
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnalign-multi-mtr-dynamic.html b/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnalign-multi-mtr-dynamic.html
new file mode 100644
index 0000000000..8ed1fa7962
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnalign-multi-mtr-dynamic.html
@@ -0,0 +1,156 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+  <head>
+    <title>Test MathML columnalign</title>
+    <link rel="match" href="mtable-columnalign-multi-ref.html"/>
+    <script type="text/javascript">
+      function doTest()
+      {
+        var table1 = document.getElementById("table1");
+        var table2 = document.getElementById("table2");
+        var table3 = document.getElementById("table3");
+        var rows = undefined;
+
+        // Table 1 setup
+        rows = table1.getElementsByTagName("mtr");
+        for(var i = 0; i < rows.length; i++)
+          rows[i].setAttribute("columnalign", "left center right");
+
+        // Table 2 setup
+        rows = table2.getElementsByTagName("mtr");
+        for(var i = 0; i < rows.length; i++)
+          rows[i].setAttribute("columnalign", "right left center");
+
+        // Table 3 setup
+        rows = table3.getElementsByTagName("mtr");
+        for(var i = 0; i < rows.length; i++)
+          rows[i].setAttribute("columnalign", "center right left");
+
+        document.documentElement.removeAttribute("class");
+      }
+    document.documentElement.addEventListener("TestRendered", doTest);
+    </script>
+  </head>
+  <body>
+    <b>columnalign="left center right"</b> <br />
+    <math>
+      <mstyle>
+        <mtable id="table1">
+          <mtr>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+            <mtext>1234567</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math> <br />
+    <b>columnalign="right left center"</b> <br />
+    <math>
+      <mstyle>
+        <mtable id="table2">
+          <mtr>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+            <mtext>1234567</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math> <br />
+    <b>columnalign="center right left"</b> <br />
+    <math>
+      <mstyle>
+        <mtable id="table3">
+          <mtr>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+            <mtext>1234567</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math>
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnalign-multi-mtr.html b/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnalign-multi-mtr.html
new file mode 100644
index 0000000000..0c77587be6
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnalign-multi-mtr.html
@@ -0,0 +1,129 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Test MathML columnalign</title>
+    <link rel="match" href="mtable-columnalign-multi-ref.html"/>
+  </head>
+  <body>
+    <b>columnalign="left center right"</b> <br />
+    <math>
+      <mstyle>
+        <mtable>
+          <mtr columnalign="left center right">
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+          </mtr>
+          <mtr columnalign="left center right">
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+          </mtr>
+          <mtr columnalign="left center right">
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+            <mtext>1234567</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math> <br />
+    <b>columnalign="right left center"</b> <br />
+    <math>
+      <mstyle>
+        <mtable>
+          <mtr columnalign="right left center">
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+          </mtr>
+          <mtr columnalign="right left center">
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+          </mtr>
+          <mtr columnalign="right left center">
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+            <mtext>1234567</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math> <br />
+    <b>columnalign="center right left"</b> <br />
+    <math>
+      <mstyle>
+        <mtable>
+          <mtr columnalign="center right left">
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+          </mtr>
+          <mtr columnalign="center right left">
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+          </mtr>
+          <mtr columnalign="center right left">
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+            <mtext>1234567</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math>
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnalign-multi-ref.html b/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnalign-multi-ref.html
new file mode 100644
index 0000000000..538eb2ad11
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnalign-multi-ref.html
@@ -0,0 +1,128 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Test MathML columnalign</title>
+  </head>
+  <body>
+    <b>columnalign="left center right"</b> <br />
+    <math>
+      <mstyle>
+        <mtable>
+          <mtr>
+            <mtd columnalign="left">
+              <mtext>123</mtext>
+            </mtd>
+            <mtd columnalign="center">
+              <mtext>123</mtext>
+            </mtd>
+            <mtd columnalign="right">
+              <mtext>123</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd columnalign="left">
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd columnalign="center">
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd columnalign="right">
+              <mtext>12345</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd columnalign="left">
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd columnalign="center">
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd columnalign="right">
+            <mtext>1234567</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math> <br />
+    <b>columnalign="right left center"</b> <br />
+    <math>
+      <mstyle>
+        <mtable>
+          <mtr>
+            <mtd columnalign="right">
+              <mtext>123</mtext>
+            </mtd>
+            <mtd columnalign="left">
+              <mtext>123</mtext>
+            </mtd>
+            <mtd columnalign="center">
+              <mtext>123</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd columnalign="right">
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd columnalign="left">
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd columnalign="center">
+              <mtext>12345</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd columnalign="right">
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd columnalign="left">
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd columnalign="center">
+            <mtext>1234567</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math> <br />
+    <b>columnalign="center right left"</b> <br />
+    <math>
+      <mstyle>
+        <mtable>
+          <mtr>
+            <mtd columnalign="center">
+              <mtext>123</mtext>
+            </mtd>
+            <mtd columnalign="right">
+              <mtext>123</mtext>
+            </mtd>
+            <mtd columnalign="left">
+              <mtext>123</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd columnalign="center">
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd columnalign="right">
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd columnalign="left">
+              <mtext>12345</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd columnalign="center">
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd columnalign="right">
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd columnalign="left">
+            <mtext>1234567</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math>
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnalign-single-mtable-dynamic.html b/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnalign-single-mtable-dynamic.html
new file mode 100644
index 0000000000..eefd2b8bb2
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnalign-single-mtable-dynamic.html
@@ -0,0 +1,147 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+  <head>
+    <title>Test MathML columnalign</title>
+    <link rel="match" href="mtable-columnalign-single-ref.html"/>
+    <script type="text/javascript">
+      function doTest()
+      {
+        var table1 = document.getElementById("table1");
+        var table2 = document.getElementById("table2");
+        var table3 = document.getElementById("table3");
+
+        // Table 1 setup
+        table1.setAttribute("columnalign", "left");
+        // Table 2 setup
+        table2.setAttribute("columnalign", "center");
+        // Table 3 setup
+        table3.setAttribute("columnalign", "right");
+
+        document.documentElement.removeAttribute("class");
+      }
+      document.documentElement.addEventListener("TestRendered", doTest);
+    </script>
+  </head>
+  <body>
+    <b>columnalign="left"</b> <br />
+    <math>
+      <mstyle>
+        <mtable id="table1">
+          <mtr>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+            <mtext>1234567</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math> <br />
+    <b>columnalign="center"</b> <br />
+    <math>
+      <mstyle>
+        <mtable id="table2">
+          <mtr>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+            <mtext>1234567</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math> <br />
+    <b>columnalign="right"</b> <br />
+    <math>
+      <mstyle>
+        <mtable id="table3">
+          <mtr>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+            <mtext>1234567</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math>
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnalign-single-mtable.html b/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnalign-single-mtable.html
new file mode 100644
index 0000000000..6bc72ef689
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnalign-single-mtable.html
@@ -0,0 +1,129 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Test MathML columnalign</title>
+    <link rel="match" href="mtable-columnalign-single-ref.html"/>
+  </head>
+  <body>
+    <b>columnalign="left"</b> <br />
+    <math>
+      <mstyle>
+        <mtable columnalign="left">
+          <mtr>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+            <mtext>1234567</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math> <br />
+    <b>columnalign="center"</b> <br />
+    <math>
+      <mstyle>
+        <mtable columnalign="center">
+          <mtr>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+            <mtext>1234567</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math> <br />
+    <b>columnalign="right"</b> <br />
+    <math>
+      <mstyle>
+        <mtable columnalign="right">
+          <mtr>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+            <mtext>1234567</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math>
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnalign-single-mtr-dynamic.html b/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnalign-single-mtr-dynamic.html
new file mode 100644
index 0000000000..bc82954d4a
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnalign-single-mtr-dynamic.html
@@ -0,0 +1,156 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+  <head>
+    <title>Test MathML columnalign</title>
+    <link rel="match" href="mtable-columnalign-single-ref.html"/>
+    <script type="text/javascript">
+      function doTest()
+      {
+        var table1 = document.getElementById("table1");
+        var table2 = document.getElementById("table2");
+        var table3 = document.getElementById("table3");
+        var rows = undefined;
+
+        // Table 1 setup
+        rows = table1.getElementsByTagName("mtr");
+        for(var i = 0; i < rows.length; i++)
+          rows[i].setAttribute("columnalign", "left");
+
+        // Table 2 setup
+        rows = table2.getElementsByTagName("mtr");
+        for(var i = 0; i < rows.length; i++)
+          rows[i].setAttribute("columnalign", "center");
+
+        // Table 3 setup
+        rows = table3.getElementsByTagName("mtr");
+        for(var i = 0; i < rows.length; i++)
+          rows[i].setAttribute("columnalign", "right");
+
+        document.documentElement.removeAttribute("class");
+      }
+    document.documentElement.addEventListener("TestRendered", doTest);
+    </script>
+  </head>
+  <body>
+    <b>columnalign="left"</b> <br />
+    <math>
+      <mstyle>
+        <mtable id="table1">
+          <mtr>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+            <mtext>1234567</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math> <br />
+    <b>columnalign="center"</b> <br />
+    <math>
+      <mstyle>
+        <mtable id="table2">
+          <mtr>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+            <mtext>1234567</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math> <br />
+    <b>columnalign="right"</b> <br />
+    <math>
+      <mstyle>
+        <mtable id="table3">
+          <mtr>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+            <mtext>1234567</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math>
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnalign-single-mtr.html b/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnalign-single-mtr.html
new file mode 100644
index 0000000000..0b52880bbf
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnalign-single-mtr.html
@@ -0,0 +1,129 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Test MathML columnalign</title>
+    <link rel="match" href="mtable-columnalign-single-ref.html"/>
+  </head>
+  <body>
+    <b>columnalign="left"</b> <br />
+    <math>
+      <mstyle>
+        <mtable>
+          <mtr columnalign="left">
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+          </mtr>
+          <mtr columnalign="left">
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+          </mtr>
+          <mtr columnalign="left">
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+            <mtext>1234567</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math> <br />
+    <b>columnalign="center"</b> <br />
+    <math>
+      <mstyle>
+        <mtable>
+          <mtr columnalign="center">
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+          </mtr>
+          <mtr columnalign="center">
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+          </mtr>
+          <mtr columnalign="center">
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+            <mtext>1234567</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math> <br />
+    <b>columnalign="right"</b> <br />
+    <math>
+      <mstyle>
+        <mtable>
+          <mtr columnalign="right">
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+            <mtd>
+              <mtext>123</mtext>
+            </mtd>
+          </mtr>
+          <mtr columnalign="right">
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd>
+              <mtext>12345</mtext>
+            </mtd>
+          </mtr>
+          <mtr columnalign="right">
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+            <mtext>1234567</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math>
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnalign-single-ref.html b/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnalign-single-ref.html
new file mode 100644
index 0000000000..69e7627f5b
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnalign-single-ref.html
@@ -0,0 +1,128 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Test MathML columnalign</title>
+  </head>
+  <body>
+    <b>columnalign="left"</b> <br />
+    <math>
+      <mstyle>
+        <mtable>
+          <mtr>
+            <mtd columnalign="left">
+              <mtext>123</mtext>
+            </mtd>
+            <mtd columnalign="left">
+              <mtext>123</mtext>
+            </mtd>
+            <mtd columnalign="left">
+              <mtext>123</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd columnalign="left">
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd columnalign="left">
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd columnalign="left">
+              <mtext>12345</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd columnalign="left">
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd columnalign="left">
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd columnalign="left">
+            <mtext>1234567</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math> <br />
+    <b>columnalign="center"</b> <br />
+    <math>
+      <mstyle>
+        <mtable>
+          <mtr>
+            <mtd columnalign="center">
+              <mtext>123</mtext>
+            </mtd>
+            <mtd columnalign="center">
+              <mtext>123</mtext>
+            </mtd>
+            <mtd columnalign="center">
+              <mtext>123</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd columnalign="center">
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd columnalign="center">
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd columnalign="center">
+              <mtext>12345</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd columnalign="center">
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd columnalign="center">
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+            <mtext>1234567</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math> <br />
+    <b>columnalign="right"</b> <br />
+    <math>
+      <mstyle>
+        <mtable>
+          <mtr>
+            <mtd columnalign="right">
+              <mtext>123</mtext>
+            </mtd>
+            <mtd columnalign="right">
+              <mtext>123</mtext>
+            </mtd>
+            <mtd columnalign="right">
+              <mtext>123</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd columnalign="right">
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd columnalign="right">
+              <mtext>12345</mtext>
+            </mtd>
+            <mtd columnalign="right">
+              <mtext>12345</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd columnalign="right">
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd columnalign="right">
+              <mtext>1234567</mtext>
+            </mtd>
+            <mtd>
+            <mtext>1234567</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math>
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnlines-multi-mtable-dynamic.html b/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnlines-multi-mtable-dynamic.html
new file mode 100644
index 0000000000..c44f54a04d
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnlines-multi-mtable-dynamic.html
@@ -0,0 +1,106 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+  <head>
+    <title>Test MathML columnlines</title>
+    <link rel="match" href="mtable-columnlines-multi-ref.html"/>
+    <script type="text/javascript">
+      function doTest()
+      {
+        var table1 = document.getElementById("table1");
+        var table2 = document.getElementById("table2");
+
+        // Table 1 setup
+        table1.setAttribute("columnlines", "solid dashed");
+        // Table 2 setup
+        table2.setAttribute("columnlines", "dashed solid");
+
+        document.documentElement.removeAttribute("class");
+      }
+      document.documentElement.addEventListener("TestRendered", doTest);
+    </script>
+  </head>
+  <body>
+  <b>columnlines="solid dashed"</b> <br />
+  <math>
+    <mstyle>
+      <mtable id="table1">
+        <mtr>
+          <mtd>
+            <mtext>a</mtext>
+          </mtd>
+          <mtd>
+            <mtext>b</mtext>
+          </mtd>
+          <mtd>
+            <mtext>c</mtext>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mtext>d</mtext>
+          </mtd>
+
+          <mtd>
+            <mtext>e</mtext>
+          </mtd>
+          <mtd>
+            <mtext>f</mtext>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mtext>g</mtext>
+          </mtd>
+          <mtd>
+            <mtext>h</mtext>
+          </mtd>
+          <mtd>
+            <mtext>i</mtext>
+          </mtd>
+        </mtr>
+      </mtable>
+    </mstyle>
+  </math> <br />
+  <b>columnlines="dashed solid"</b> <br />
+  <math>
+    <mstyle>
+      <mtable id="table2">
+        <mtr>
+          <mtd>
+            <mtext>a</mtext>
+          </mtd>
+          <mtd>
+            <mtext>b</mtext>
+          </mtd>
+          <mtd>
+            <mtext>c</mtext>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mtext>d</mtext>
+          </mtd>
+
+          <mtd>
+            <mtext>e</mtext>
+          </mtd>
+          <mtd>
+            <mtext>f</mtext>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mtext>g</mtext>
+          </mtd>
+          <mtd>
+            <mtext>h</mtext>
+          </mtd>
+          <mtd>
+            <mtext>i</mtext>
+          </mtd>
+        </mtr>
+      </mtable>
+    </mstyle>
+  </math> <br />
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnlines-multi-ref.html b/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnlines-multi-ref.html
new file mode 100644
index 0000000000..f3ec936817
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnlines-multi-ref.html
@@ -0,0 +1,90 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Test MathML columnlines</title>
+  </head>
+  <body>
+  <b>columnlines="solid dashed"</b> <br />
+  <math>
+    <mstyle>
+      <mtable columnlines="solid dashed">
+        <mtr>
+          <mtd>
+            <mtext>a</mtext>
+          </mtd>
+          <mtd>
+            <mtext>b</mtext>
+          </mtd>
+          <mtd>
+            <mtext>c</mtext>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mtext>d</mtext>
+          </mtd>
+
+          <mtd>
+            <mtext>e</mtext>
+          </mtd>
+          <mtd>
+            <mtext>f</mtext>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mtext>g</mtext>
+          </mtd>
+          <mtd>
+            <mtext>h</mtext>
+          </mtd>
+          <mtd>
+            <mtext>i</mtext>
+          </mtd>
+        </mtr>
+      </mtable>
+    </mstyle>
+  </math> <br />
+  <b>columnlines="dashed solid"</b> <br />
+  <math>
+    <mstyle>
+      <mtable columnlines="dashed solid">
+        <mtr>
+          <mtd>
+            <mtext>a</mtext>
+          </mtd>
+          <mtd>
+            <mtext>b</mtext>
+          </mtd>
+          <mtd>
+            <mtext>c</mtext>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mtext>d</mtext>
+          </mtd>
+
+          <mtd>
+            <mtext>e</mtext>
+          </mtd>
+          <mtd>
+            <mtext>f</mtext>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mtext>g</mtext>
+          </mtd>
+          <mtd>
+            <mtext>h</mtext>
+          </mtd>
+          <mtd>
+            <mtext>i</mtext>
+          </mtd>
+        </mtr>
+      </mtable>
+    </mstyle>
+  </math> <br />
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnlines-single-mtable-dynamic.html b/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnlines-single-mtable-dynamic.html
new file mode 100644
index 0000000000..cc94d94179
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnlines-single-mtable-dynamic.html
@@ -0,0 +1,106 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+  <head>
+    <title>Test MathML columnlines</title>
+    <link rel="match" href="mtable-columnlines-single-ref.html"/>
+    <script type="text/javascript">
+      function doTest()
+      {
+        var table1 = document.getElementById("table1");
+        var table2 = document.getElementById("table2");
+
+        // Table 1 setup
+        table1.setAttribute("columnlines", "solid");
+        // Table 2 setup
+        table2.setAttribute("columnlines", "dashed");
+
+        document.documentElement.removeAttribute("class");
+      }
+      document.documentElement.addEventListener("TestRendered", doTest);
+    </script>
+  </head>
+  <body>
+  <b>columnlines="solid"</b> <br />
+  <math>
+    <mstyle>
+      <mtable id="table1">
+        <mtr>
+          <mtd>
+            <mtext>a</mtext>
+          </mtd>
+          <mtd>
+            <mtext>b</mtext>
+          </mtd>
+          <mtd>
+            <mtext>c</mtext>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mtext>d</mtext>
+          </mtd>
+
+          <mtd>
+            <mtext>e</mtext>
+          </mtd>
+          <mtd>
+            <mtext>f</mtext>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mtext>g</mtext>
+          </mtd>
+          <mtd>
+            <mtext>h</mtext>
+          </mtd>
+          <mtd>
+            <mtext>i</mtext>
+          </mtd>
+        </mtr>
+      </mtable>
+    </mstyle>
+  </math> <br />
+  <b>columnlines="dashed"</b> <br />
+  <math>
+    <mstyle>
+      <mtable id="table2">
+        <mtr>
+          <mtd>
+            <mtext>a</mtext>
+          </mtd>
+          <mtd>
+            <mtext>b</mtext>
+          </mtd>
+          <mtd>
+            <mtext>c</mtext>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mtext>d</mtext>
+          </mtd>
+
+          <mtd>
+            <mtext>e</mtext>
+          </mtd>
+          <mtd>
+            <mtext>f</mtext>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mtext>g</mtext>
+          </mtd>
+          <mtd>
+            <mtext>h</mtext>
+          </mtd>
+          <mtd>
+            <mtext>i</mtext>
+          </mtd>
+        </mtr>
+      </mtable>
+    </mstyle>
+  </math> <br />
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnlines-single-ref.html b/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnlines-single-ref.html
new file mode 100644
index 0000000000..d6fc000c77
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/mtable-columnlines-single-ref.html
@@ -0,0 +1,90 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Test MathML columnlines</title>
+  </head>
+  <body>
+  <b>columnlines="solid"</b> <br />
+  <math>
+    <mstyle>
+      <mtable columnlines="solid">
+        <mtr>
+          <mtd>
+            <mtext>a</mtext>
+          </mtd>
+          <mtd>
+            <mtext>b</mtext>
+          </mtd>
+          <mtd>
+            <mtext>c</mtext>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mtext>d</mtext>
+          </mtd>
+
+          <mtd>
+            <mtext>e</mtext>
+          </mtd>
+          <mtd>
+            <mtext>f</mtext>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mtext>g</mtext>
+          </mtd>
+          <mtd>
+            <mtext>h</mtext>
+          </mtd>
+          <mtd>
+            <mtext>i</mtext>
+          </mtd>
+        </mtr>
+      </mtable>
+    </mstyle>
+  </math> <br />
+  <b>columnlines="dashed"</b> <br />
+  <math>
+    <mstyle>
+      <mtable columnlines="dashed">
+        <mtr>
+          <mtd>
+            <mtext>a</mtext>
+          </mtd>
+          <mtd>
+            <mtext>b</mtext>
+          </mtd>
+          <mtd>
+            <mtext>c</mtext>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mtext>d</mtext>
+          </mtd>
+
+          <mtd>
+            <mtext>e</mtext>
+          </mtd>
+          <mtd>
+            <mtext>f</mtext>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mtext>g</mtext>
+          </mtd>
+          <mtd>
+            <mtext>h</mtext>
+          </mtd>
+          <mtd>
+            <mtext>i</mtext>
+          </mtd>
+        </mtr>
+      </mtable>
+    </mstyle>
+  </math> <br />
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/mtable-rowalign-multi-mtable-dynamic.html b/testing/web-platform/mozilla/tests/mathml/tables/mtable-rowalign-multi-mtable-dynamic.html
new file mode 100644
index 0000000000..f8ebe79999
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/mtable-rowalign-multi-mtable-dynamic.html
@@ -0,0 +1,147 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+  <head>
+    <title>Test MathML rowalign</title>
+    <link rel="match" href="mtable-rowalign-multi-ref.html"/>
+    <script type="text/javascript">
+      function doTest()
+      {
+        var table1 = document.getElementById("table1");
+        var table2 = document.getElementById("table2");
+        var table3 = document.getElementById("table3");
+
+        // Table 1 setup
+        table1.setAttribute("rowalign", "top center bottom");
+        // Table 2 setup
+        table2.setAttribute("rowalign", "bottom top center");
+        // Table 3 setup
+        table3.setAttribute("rowalign", "center bottom top");
+
+        document.documentElement.removeAttribute("class");
+      }
+      document.documentElement.addEventListener("TestRendered", doTest);
+    </script>
+  </head>
+  <body>
+    <b>rowalign="top center bottom"</b> <br/>
+    <math>
+      <mstyle>
+        <mtable id="table1">
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math> <br />
+    <b>rowalign="bottom top center"</b> <br />
+    <math>
+      <mstyle>
+        <mtable id="table2">
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math> <br />
+    <b>rowalign="center bottom top"</b> <br />
+    <math>
+      <mstyle>
+        <mtable id="table3">
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math>
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/mtable-rowalign-multi-mtable.html b/testing/web-platform/mozilla/tests/mathml/tables/mtable-rowalign-multi-mtable.html
new file mode 100644
index 0000000000..de8cd62e94
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/mtable-rowalign-multi-mtable.html
@@ -0,0 +1,129 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Test MathML rowalign</title>
+    <link rel="match" href="mtable-rowalign-multi-ref.html"/>
+  </head>
+  <body>
+    <b>rowalign="top center bottom"</b> <br/>
+    <math>
+      <mstyle>
+        <mtable rowalign="top center bottom">
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math> <br />
+    <b>rowalign="bottom top center"</b> <br />
+    <math>
+      <mstyle>
+        <mtable rowalign="bottom top center">
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math> <br />
+    <b>rowalign="center bottom top"</b> <br />
+    <math>
+      <mstyle>
+        <mtable rowalign="center bottom top">
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math>
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/mtable-rowalign-multi-ref.html b/testing/web-platform/mozilla/tests/mathml/tables/mtable-rowalign-multi-ref.html
new file mode 100644
index 0000000000..6e1fc1910a
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/mtable-rowalign-multi-ref.html
@@ -0,0 +1,128 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Test MathML rowalign</title>
+  </head>
+  <body>
+    <b>rowalign="top center bottom"</b> <br/>
+    <math>
+      <mstyle>
+        <mtable>
+          <mtr>
+            <mtd rowalign="top">
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd rowalign="top">
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd rowalign="top">
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd rowalign="center">
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd rowalign="center">
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd rowalign="center">
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd rowalign="bottom">
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd rowalign="bottom">
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd rowalign="bottom">
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math> <br />
+    <b>rowalign="bottom top center"</b> <br />
+    <math>
+      <mstyle>
+        <mtable>
+          <mtr>
+            <mtd rowalign="bottom">
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd rowalign="bottom">
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd rowalign="bottom">
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd rowalign="top">
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd rowalign="top">
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd rowalign="top">
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd rowalign="center">
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd rowalign="center">
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd rowalign="center">
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math> <br />
+    <b>rowalign="center bottom top"</b> <br />
+    <math>
+      <mstyle>
+        <mtable>
+          <mtr>
+            <mtd rowalign="center">
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd rowalign="center">
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd rowalign="center">
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd rowalign="bottom">
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd rowalign="bottom">
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd rowalign="bottom">
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd rowalign="top">
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd rowalign="top">
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd rowalign="top">
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math>
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/mtable-rowalign-single-mtable-dynamic.html b/testing/web-platform/mozilla/tests/mathml/tables/mtable-rowalign-single-mtable-dynamic.html
new file mode 100644
index 0000000000..c0c66c8979
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/mtable-rowalign-single-mtable-dynamic.html
@@ -0,0 +1,147 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+  <head>
+    <title>Test MathML rowalign</title>
+    <link rel="match" href="mtable-rowalign-single-ref.html"/>
+    <script type="text/javascript">
+      function doTest()
+      {
+        var table1 = document.getElementById("table1");
+        var table2 = document.getElementById("table2");
+        var table3 = document.getElementById("table3");
+
+        // Table 1 setup
+        table1.setAttribute("rowalign", "top");
+        // Table 2 setup
+        table2.setAttribute("rowalign", "center");
+        // Table 3 setup
+        table3.setAttribute("rowalign", "bottom");
+
+        document.documentElement.removeAttribute("class");
+      }
+      document.documentElement.addEventListener("TestRendered", doTest);
+    </script>
+  </head>
+  <body>
+    <b>rowalign="top"</b> <br/>
+    <math>
+      <mstyle>
+        <mtable id="table1">
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math> <br />
+    <b>rowalign="center"</b> <br />
+    <math>
+      <mstyle>
+        <mtable id="table2">
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math> <br />
+    <b>rowalign="bottom"</b> <br />
+    <math>
+      <mstyle>
+        <mtable id="table3">
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math>
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/mtable-rowalign-single-mtable.html b/testing/web-platform/mozilla/tests/mathml/tables/mtable-rowalign-single-mtable.html
new file mode 100644
index 0000000000..2ecb4ee001
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/mtable-rowalign-single-mtable.html
@@ -0,0 +1,129 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Test MathML rowalign</title>
+    <link rel="match" href="mtable-rowalign-single-ref.html"/>
+  </head>
+  <body>
+    <b>rowalign="top"</b> <br/>
+    <math>
+      <mstyle>
+        <mtable rowalign="top">
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math> <br />
+    <b>rowalign="center"</b> <br />
+    <math>
+      <mstyle>
+        <mtable rowalign="center">
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math> <br />
+    <b>rowalign="bottom"</b> <br />
+    <math>
+      <mstyle>
+        <mtable rowalign="bottom">
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math>
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/mtable-rowalign-single-mtr-dynamic.html b/testing/web-platform/mozilla/tests/mathml/tables/mtable-rowalign-single-mtr-dynamic.html
new file mode 100644
index 0000000000..cb298c8047
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/mtable-rowalign-single-mtr-dynamic.html
@@ -0,0 +1,156 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+  <head>
+    <title>Test MathML rowalign</title>
+    <link rel="match" href="mtable-rowalign-single-ref.html"/>
+    <script type="text/javascript">
+      function doTest()
+      {
+        var table1 = document.getElementById("table1");
+        var table2 = document.getElementById("table2");
+        var table3 = document.getElementById("table3");
+        var rows = undefined;
+
+        // Table 1 setup
+        rows = table1.getElementsByTagName("mtr");
+        for(var i = 0; i < rows.length; i++)
+          rows[i].setAttribute("rowalign", "top");
+
+        // Table 2 setup
+        rows = table2.getElementsByTagName("mtr");
+        for(var i = 0; i < rows.length; i++)
+          rows[i].setAttribute("rowalign", "center");
+
+        // Table 3 setup
+        rows = table3.getElementsByTagName("mtr");
+        for(var i = 0; i < rows.length; i++)
+          rows[i].setAttribute("rowalign", "bottom");
+
+        document.documentElement.removeAttribute("class");
+      }
+    document.documentElement.addEventListener("TestRendered", doTest);
+    </script>
+  </head>
+  <body>
+    <b>rowalign="top"</b> <br/>
+    <math>
+      <mstyle>
+        <mtable id="table1">
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math> <br />
+    <b>rowalign="center"</b> <br />
+    <math>
+      <mstyle>
+        <mtable id="table2">
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math> <br />
+    <b>rowalign="bottom"</b> <br />
+    <math>
+      <mstyle>
+        <mtable id="table3">
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math>
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/mtable-rowalign-single-mtr.html b/testing/web-platform/mozilla/tests/mathml/tables/mtable-rowalign-single-mtr.html
new file mode 100644
index 0000000000..7481d29768
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/mtable-rowalign-single-mtr.html
@@ -0,0 +1,129 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Test MathML rowalign</title>
+    <link rel="match" href="mtable-rowalign-single-ref.html"/>
+  </head>
+  <body>
+    <b>rowalign="top"</b> <br/>
+    <math>
+      <mstyle>
+        <mtable>
+          <mtr rowalign="top">
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr rowalign="top">
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr rowalign="top">
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math> <br />
+    <b>rowalign="center"</b> <br />
+    <math>
+      <mstyle>
+        <mtable>
+          <mtr rowalign="center">
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr rowalign="center">
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr rowalign="center">
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math> <br />
+    <b>rowalign="bottom"</b> <br />
+    <math>
+      <mstyle>
+        <mtable>
+          <mtr rowalign="bottom">
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr rowalign="bottom">
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr rowalign="bottom">
+            <mtd>
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd>
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math>
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/mtable-rowalign-single-ref.html b/testing/web-platform/mozilla/tests/mathml/tables/mtable-rowalign-single-ref.html
new file mode 100644
index 0000000000..b343cb7b8e
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/mtable-rowalign-single-ref.html
@@ -0,0 +1,128 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Test MathML rowalign</title>
+  </head>
+  <body>
+    <b>rowalign="top"</b> <br/>
+    <math>
+      <mstyle>
+        <mtable>
+          <mtr>
+            <mtd rowalign="top">
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd rowalign="top">
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd rowalign="top">
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd rowalign="top">
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd rowalign="top">
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd rowalign="top">
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd rowalign="top">
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd rowalign="top">
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd rowalign="top">
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math> <br />
+    <b>rowalign="center"</b> <br />
+    <math>
+      <mstyle>
+        <mtable>
+          <mtr>
+            <mtd rowalign="center">
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd rowalign="center">
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd rowalign="center">
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd rowalign="center">
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd rowalign="center">
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd rowalign="center">
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd rowalign="center">
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd rowalign="center">
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd rowalign="center">
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math> <br />
+    <b>rowalign="bottom"</b> <br />
+    <math>
+      <mstyle>
+        <mtable>
+          <mtr>
+            <mtd rowalign="bottom">
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd rowalign="bottom">
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd rowalign="bottom">
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd rowalign="bottom">
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd rowalign="bottom">
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd rowalign="bottom">
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd rowalign="bottom">
+              <mspace width="10px" depth="5px" height="5px" mathbackground="red"></mspace>
+            </mtd>
+            <mtd rowalign="bottom">
+              <mspace width="10px" depth="10px" height="10px" mathbackground="green"></mspace>
+            </mtd>
+            <mtd rowalign="bottom">
+              <mspace width="10px" depth="15px" height="15px" mathbackground="blue"></mspace>
+            </mtd>
+          </mtr>
+        </mtable>
+      </mstyle>
+    </math>
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/mtable-rowlines-multi-mtable-dynamic.html b/testing/web-platform/mozilla/tests/mathml/tables/mtable-rowlines-multi-mtable-dynamic.html
new file mode 100644
index 0000000000..e00fcd3504
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/mtable-rowlines-multi-mtable-dynamic.html
@@ -0,0 +1,106 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+  <head>
+    <title>Test MathML rowlines</title>
+    <link rel="match" href="mtable-rowlines-multi-ref.html"/>
+    <script type="text/javascript">
+      function doTest()
+      {
+        var table1 = document.getElementById("table1");
+        var table2 = document.getElementById("table2");
+
+        // Table 1 setup
+        table1.setAttribute("rowlines", "solid dashed");
+        // Table 2 setup
+        table2.setAttribute("rowlines", "dashed solid");
+
+        document.documentElement.removeAttribute("class");
+      }
+      document.documentElement.addEventListener("TestRendered", doTest);
+    </script>
+  </head>
+  <body>
+  <b>rowlines="solid dashed"</b> <br />
+  <math>
+    <mstyle>
+      <mtable id="table1">
+        <mtr>
+          <mtd>
+            <mtext>a</mtext>
+          </mtd>
+          <mtd>
+            <mtext>b</mtext>
+          </mtd>
+          <mtd>
+            <mtext>c</mtext>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mtext>d</mtext>
+          </mtd>
+
+          <mtd>
+            <mtext>e</mtext>
+          </mtd>
+          <mtd>
+            <mtext>f</mtext>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mtext>g</mtext>
+          </mtd>
+          <mtd>
+            <mtext>h</mtext>
+          </mtd>
+          <mtd>
+            <mtext>i</mtext>
+          </mtd>
+        </mtr>
+      </mtable>
+    </mstyle>
+  </math> <br />
+  <b>rowlines="dashed solid"</b> <br />
+  <math>
+    <mstyle>
+      <mtable id="table2">
+        <mtr>
+          <mtd>
+            <mtext>a</mtext>
+          </mtd>
+          <mtd>
+            <mtext>b</mtext>
+          </mtd>
+          <mtd>
+            <mtext>c</mtext>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mtext>d</mtext>
+          </mtd>
+
+          <mtd>
+            <mtext>e</mtext>
+          </mtd>
+          <mtd>
+            <mtext>f</mtext>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mtext>g</mtext>
+          </mtd>
+          <mtd>
+            <mtext>h</mtext>
+          </mtd>
+          <mtd>
+            <mtext>i</mtext>
+          </mtd>
+        </mtr>
+      </mtable>
+    </mstyle>
+  </math> <br />
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/mtable-rowlines-multi-ref.html b/testing/web-platform/mozilla/tests/mathml/tables/mtable-rowlines-multi-ref.html
new file mode 100644
index 0000000000..ac5f1f1c2b
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/mtable-rowlines-multi-ref.html
@@ -0,0 +1,90 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Test MathML rowlines</title>
+  </head>
+  <body>
+  <b>rowlines="solid dashed"</b> <br />
+  <math>
+    <mstyle>
+      <mtable rowlines="solid dashed">
+        <mtr>
+          <mtd>
+            <mtext>a</mtext>
+          </mtd>
+          <mtd>
+            <mtext>b</mtext>
+          </mtd>
+          <mtd>
+            <mtext>c</mtext>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mtext>d</mtext>
+          </mtd>
+
+          <mtd>
+            <mtext>e</mtext>
+          </mtd>
+          <mtd>
+            <mtext>f</mtext>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mtext>g</mtext>
+          </mtd>
+          <mtd>
+            <mtext>h</mtext>
+          </mtd>
+          <mtd>
+            <mtext>i</mtext>
+          </mtd>
+        </mtr>
+      </mtable>
+    </mstyle>
+  </math> <br />
+  <b>rowlines="dashed solid"</b> <br />
+  <math>
+    <mstyle>
+      <mtable rowlines="dashed solid">
+        <mtr>
+          <mtd>
+            <mtext>a</mtext>
+          </mtd>
+          <mtd>
+            <mtext>b</mtext>
+          </mtd>
+          <mtd>
+            <mtext>c</mtext>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mtext>d</mtext>
+          </mtd>
+
+          <mtd>
+            <mtext>e</mtext>
+          </mtd>
+          <mtd>
+            <mtext>f</mtext>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mtext>g</mtext>
+          </mtd>
+          <mtd>
+            <mtext>h</mtext>
+          </mtd>
+          <mtd>
+            <mtext>i</mtext>
+          </mtd>
+        </mtr>
+      </mtable>
+    </mstyle>
+  </math> <br />
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/mtable-rowlines-single-mtable-dynamic.html b/testing/web-platform/mozilla/tests/mathml/tables/mtable-rowlines-single-mtable-dynamic.html
new file mode 100644
index 0000000000..da283aaab9
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/mtable-rowlines-single-mtable-dynamic.html
@@ -0,0 +1,106 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+  <head>
+    <title>Test MathML rowlines</title>
+    <link rel="match" href="mtable-rowlines-single-ref.html"/>
+    <script type="text/javascript">
+      function doTest()
+      {
+        var table1 = document.getElementById("table1");
+        var table2 = document.getElementById("table2");
+
+        // Table 1 setup
+        table1.setAttribute("rowlines", "solid");
+        // Table 2 setup
+        table2.setAttribute("rowlines", "dashed");
+
+        document.documentElement.removeAttribute("class");
+      }
+      document.documentElement.addEventListener("TestRendered", doTest);
+    </script>
+  </head>
+  <body>
+  <b>rowlines="solid"</b> <br />
+  <math>
+    <mstyle>
+      <mtable id="table1">
+        <mtr>
+          <mtd>
+            <mtext>a</mtext>
+          </mtd>
+          <mtd>
+            <mtext>b</mtext>
+          </mtd>
+          <mtd>
+            <mtext>c</mtext>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mtext>d</mtext>
+          </mtd>
+
+          <mtd>
+            <mtext>e</mtext>
+          </mtd>
+          <mtd>
+            <mtext>f</mtext>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mtext>g</mtext>
+          </mtd>
+          <mtd>
+            <mtext>h</mtext>
+          </mtd>
+          <mtd>
+            <mtext>i</mtext>
+          </mtd>
+        </mtr>
+      </mtable>
+    </mstyle>
+  </math> <br />
+  <b>rowlines="dashed"</b> <br />
+  <math>
+    <mstyle>
+      <mtable id="table2">
+        <mtr>
+          <mtd>
+            <mtext>a</mtext>
+          </mtd>
+          <mtd>
+            <mtext>b</mtext>
+          </mtd>
+          <mtd>
+            <mtext>c</mtext>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mtext>d</mtext>
+          </mtd>
+
+          <mtd>
+            <mtext>e</mtext>
+          </mtd>
+          <mtd>
+            <mtext>f</mtext>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mtext>g</mtext>
+          </mtd>
+          <mtd>
+            <mtext>h</mtext>
+          </mtd>
+          <mtd>
+            <mtext>i</mtext>
+          </mtd>
+        </mtr>
+      </mtable>
+    </mstyle>
+  </math> <br />
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/mtable-rowlines-single-ref.html b/testing/web-platform/mozilla/tests/mathml/tables/mtable-rowlines-single-ref.html
new file mode 100644
index 0000000000..000eaa2a24
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/mtable-rowlines-single-ref.html
@@ -0,0 +1,90 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Test MathML rowlines</title>
+  </head>
+  <body>
+  <b>rowlines="solid"</b> <br />
+  <math>
+    <mstyle>
+      <mtable rowlines="solid">
+        <mtr>
+          <mtd>
+            <mtext>a</mtext>
+          </mtd>
+          <mtd>
+            <mtext>b</mtext>
+          </mtd>
+          <mtd>
+            <mtext>c</mtext>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mtext>d</mtext>
+          </mtd>
+
+          <mtd>
+            <mtext>e</mtext>
+          </mtd>
+          <mtd>
+            <mtext>f</mtext>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mtext>g</mtext>
+          </mtd>
+          <mtd>
+            <mtext>h</mtext>
+          </mtd>
+          <mtd>
+            <mtext>i</mtext>
+          </mtd>
+        </mtr>
+      </mtable>
+    </mstyle>
+  </math> <br />
+  <b>rowlines="dashed"</b> <br />
+  <math>
+    <mstyle>
+      <mtable rowlines="dashed">
+        <mtr>
+          <mtd>
+            <mtext>a</mtext>
+          </mtd>
+          <mtd>
+            <mtext>b</mtext>
+          </mtd>
+          <mtd>
+            <mtext>c</mtext>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mtext>d</mtext>
+          </mtd>
+
+          <mtd>
+            <mtext>e</mtext>
+          </mtd>
+          <mtd>
+            <mtext>f</mtext>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mtext>g</mtext>
+          </mtd>
+          <mtd>
+            <mtext>h</mtext>
+          </mtd>
+          <mtd>
+            <mtext>i</mtext>
+          </mtd>
+        </mtr>
+      </mtable>
+    </mstyle>
+  </math> <br />
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/mtable-width-ref.html b/testing/web-platform/mozilla/tests/mathml/tables/mtable-width-ref.html
new file mode 100644
index 0000000000..d93f5a60b4
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/mtable-width-ref.html
@@ -0,0 +1,44 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
+  </head>
+
+  <body>
+
+<div>
+    <math>
+      <mtext>|</mtext>
+      <mtable style="width:8em">
+        <mtr>
+          <mtd></mtd>
+        </mtr>
+      </mtable>
+      <mtext>|</mtext>
+    </math>
+</div>
+<div>
+    <math>
+      <mtext>|</mtext>
+      <mtable style="width:30px">
+        <mtr>
+          <mtd></mtd>
+        </mtr>
+      </mtable>
+      <mtext>|</mtext>
+    </math>
+</div>
+<div>
+    <math>
+      <mtext>|</mtext>
+      <mtable>
+        <mtr>
+          <mtd></mtd>
+        </mtr>
+      </mtable>
+      <mtext>|</mtext>
+    </math>
+</div>
+
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/mtable-width.html b/testing/web-platform/mozilla/tests/mathml/tables/mtable-width.html
new file mode 100644
index 0000000000..e4e705c2e6
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/mtable-width.html
@@ -0,0 +1,46 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Check that mtable supports the width attribute</title>
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
+    <link rel="match" href="mtable-width-ref.html"/>
+  </head>
+
+  <body>
+
+<div>
+    <math>
+      <mtext>|</mtext>
+      <mtable width="8em">
+        <mtr>
+          <mtd></mtd>
+        </mtr>
+      </mtable>
+      <mtext>|</mtext>
+    </math>
+</div>
+<div>
+    <math>
+      <mtext>|</mtext>
+      <mtable width="30px">
+        <mtr>
+          <mtd></mtd>
+        </mtr>
+      </mtable>
+      <mtext>|</mtext>
+    </math>
+</div>
+<div>
+    <math>
+      <mtext>|</mtext>
+      <mtable width="auto">
+        <mtr>
+          <mtd></mtd>
+        </mtr>
+      </mtable>
+      <mtext>|</mtext>
+    </math>
+</div>
+
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/rowlines-1-ref.html b/testing/web-platform/mozilla/tests/mathml/tables/rowlines-1-ref.html
new file mode 100644
index 0000000000..e5ea01a7de
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/rowlines-1-ref.html
@@ -0,0 +1,77 @@
+<!-- -*- mode: HTML; tab-width: 2; indent-tabs-mode: nil; -*- -->
+<!-- vim: set tabstop=2 expandtab shiftwidth=2 textwidth=80:  -->
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>mtable frame</title>
+    <!-- Copyright (c) 2011 Design Science, Inc.
+         License: Apache License 2.0 -->
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
+  </head>
+
+  <body>
+
+    <math>
+      <mtable>
+        <mtr>
+          <mtd>
+            <mn>1</mn>
+          </mtd>
+          <mtd>
+            <mn>2</mn>
+          </mtd>
+          <mtd>
+            <mn>3</mn>
+          </mtd>
+          <mtd>
+            <mn>4</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>5</mn>
+          </mtd>
+          <mtd>
+            <mn>6</mn>
+          </mtd>
+          <mtd>
+            <mn>7</mn>
+          </mtd>
+          <mtd>
+            <mn>8</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>9</mn>
+          </mtd>
+          <mtd>
+            <mn>10</mn>
+          </mtd>
+          <mtd>
+            <mn>11</mn>
+          </mtd>
+          <mtd>
+            <mn>12</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>13</mn>
+          </mtd>
+          <mtd>
+            <mn>14</mn>
+          </mtd>
+          <mtd>
+            <mn>15</mn>
+          </mtd>
+          <mtd>
+            <mn>16</mn>
+          </mtd>
+        </mtr>
+      </mtable>
+    </math>
+
+
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/rowlines-1a.html b/testing/web-platform/mozilla/tests/mathml/tables/rowlines-1a.html
new file mode 100644
index 0000000000..973f25191c
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/rowlines-1a.html
@@ -0,0 +1,78 @@
+<!-- -*- mode: HTML; tab-width: 2; indent-tabs-mode: nil; -*- -->
+<!-- vim: set tabstop=2 expandtab shiftwidth=2 textwidth=80:  -->
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>mtable frame</title>
+    <!-- Copyright (c) 2011 Design Science, Inc.
+         License: Apache License 2.0 -->
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
+    <link rel="match" href="rowlines-1-ref.html"/>
+  </head>
+
+  <body>
+
+    <math>
+      <mtable rowlines="none">
+        <mtr>
+          <mtd>
+            <mn>1</mn>
+          </mtd>
+          <mtd>
+            <mn>2</mn>
+          </mtd>
+          <mtd>
+            <mn>3</mn>
+          </mtd>
+          <mtd>
+            <mn>4</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>5</mn>
+          </mtd>
+          <mtd>
+            <mn>6</mn>
+          </mtd>
+          <mtd>
+            <mn>7</mn>
+          </mtd>
+          <mtd>
+            <mn>8</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>9</mn>
+          </mtd>
+          <mtd>
+            <mn>10</mn>
+          </mtd>
+          <mtd>
+            <mn>11</mn>
+          </mtd>
+          <mtd>
+            <mn>12</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>13</mn>
+          </mtd>
+          <mtd>
+            <mn>14</mn>
+          </mtd>
+          <mtd>
+            <mn>15</mn>
+          </mtd>
+          <mtd>
+            <mn>16</mn>
+          </mtd>
+        </mtr>
+      </mtable>
+    </math>
+
+
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/rowlines-1b.html b/testing/web-platform/mozilla/tests/mathml/tables/rowlines-1b.html
new file mode 100644
index 0000000000..d4db5d3a97
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/rowlines-1b.html
@@ -0,0 +1,78 @@
+<!-- -*- mode: HTML; tab-width: 2; indent-tabs-mode: nil; -*- -->
+<!-- vim: set tabstop=2 expandtab shiftwidth=2 textwidth=80:  -->
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>mtable frame</title>
+    <!-- Copyright (c) 2011 Design Science, Inc.
+         License: Apache License 2.0 -->
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
+    <link rel="mismatch" href="rowlines-1-ref.html"/>
+  </head>
+
+  <body>
+
+    <math>
+      <mtable  rowlines="solid">
+        <mtr>
+          <mtd>
+            <mn>1</mn>
+          </mtd>
+          <mtd>
+            <mn>2</mn>
+          </mtd>
+          <mtd>
+            <mn>3</mn>
+          </mtd>
+          <mtd>
+            <mn>4</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>5</mn>
+          </mtd>
+          <mtd>
+            <mn>6</mn>
+          </mtd>
+          <mtd>
+            <mn>7</mn>
+          </mtd>
+          <mtd>
+            <mn>8</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>9</mn>
+          </mtd>
+          <mtd>
+            <mn>10</mn>
+          </mtd>
+          <mtd>
+            <mn>11</mn>
+          </mtd>
+          <mtd>
+            <mn>12</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>13</mn>
+          </mtd>
+          <mtd>
+            <mn>14</mn>
+          </mtd>
+          <mtd>
+            <mn>15</mn>
+          </mtd>
+          <mtd>
+            <mn>16</mn>
+          </mtd>
+        </mtr>
+      </mtable>
+    </math>
+
+
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/rowlines-1c.html b/testing/web-platform/mozilla/tests/mathml/tables/rowlines-1c.html
new file mode 100644
index 0000000000..04488fc214
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/rowlines-1c.html
@@ -0,0 +1,78 @@
+<!-- -*- mode: HTML; tab-width: 2; indent-tabs-mode: nil; -*- -->
+<!-- vim: set tabstop=2 expandtab shiftwidth=2 textwidth=80:  -->
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>mtable frame</title>
+    <!-- Copyright (c) 2011 Design Science, Inc.
+         License: Apache License 2.0 -->
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
+    <link rel="mismatch" href="rowlines-1-ref.html"/>
+  </head>
+
+  <body>
+
+    <math>
+      <mtable rowlines="dashed">
+        <mtr>
+          <mtd>
+            <mn>1</mn>
+          </mtd>
+          <mtd>
+            <mn>2</mn>
+          </mtd>
+          <mtd>
+            <mn>3</mn>
+          </mtd>
+          <mtd>
+            <mn>4</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>5</mn>
+          </mtd>
+          <mtd>
+            <mn>6</mn>
+          </mtd>
+          <mtd>
+            <mn>7</mn>
+          </mtd>
+          <mtd>
+            <mn>8</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>9</mn>
+          </mtd>
+          <mtd>
+            <mn>10</mn>
+          </mtd>
+          <mtd>
+            <mn>11</mn>
+          </mtd>
+          <mtd>
+            <mn>12</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>13</mn>
+          </mtd>
+          <mtd>
+            <mn>14</mn>
+          </mtd>
+          <mtd>
+            <mn>15</mn>
+          </mtd>
+          <mtd>
+            <mn>16</mn>
+          </mtd>
+        </mtr>
+      </mtable>
+    </math>
+
+
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/rowlines-2-ref.html b/testing/web-platform/mozilla/tests/mathml/tables/rowlines-2-ref.html
new file mode 100644
index 0000000000..f66962bad6
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/rowlines-2-ref.html
@@ -0,0 +1,51 @@
+<!-- -*- mode: HTML; tab-width: 2; indent-tabs-mode: nil; -*- -->
+<!-- vim: set tabstop=2 expandtab shiftwidth=2 textwidth=80:  -->
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>mtable frame</title>
+    <!-- Copyright (c) 2011 Design Science, Inc.
+         License: Apache License 2.0 -->
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
+  </head>
+
+  <body>
+
+    <math>
+      <mtable rowlines="none dashed solid solid solid">
+        <mtr>
+          <mtd>
+            <mn>1</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>2</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>3</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>4</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>5</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>*</mn>
+          </mtd>
+        </mtr>
+      </mtable>
+    </math>
+
+
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/rowlines-2a.html b/testing/web-platform/mozilla/tests/mathml/tables/rowlines-2a.html
new file mode 100644
index 0000000000..a4d73a2f55
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/rowlines-2a.html
@@ -0,0 +1,52 @@
+<!-- -*- mode: HTML; tab-width: 2; indent-tabs-mode: nil; -*- -->
+<!-- vim: set tabstop=2 expandtab shiftwidth=2 textwidth=80:  -->
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>mtable frame</title>
+    <!-- Copyright (c) 2011 Design Science, Inc.
+         License: Apache License 2.0 -->
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
+    <link rel="match" href="rowlines-2-ref.html"/>
+  </head>
+
+  <body>
+
+    <math>
+      <mtable rowlines="none dashed solid">
+        <mtr>
+          <mtd>
+            <mn>1</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>2</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>3</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>4</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>5</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>*</mn>
+          </mtd>
+        </mtr>
+      </mtable>
+    </math>
+
+
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/rowlines-2b.html b/testing/web-platform/mozilla/tests/mathml/tables/rowlines-2b.html
new file mode 100644
index 0000000000..2ac9ea8fab
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/rowlines-2b.html
@@ -0,0 +1,52 @@
+<!-- -*- mode: HTML; tab-width: 2; indent-tabs-mode: nil; -*- -->
+<!-- vim: set tabstop=2 expandtab shiftwidth=2 textwidth=80:  -->
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>mtable frame</title>
+    <!-- Copyright (c) 2011 Design Science, Inc.
+         License: Apache License 2.0 -->
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
+    <link rel="match" href="rowlines-2-ref.html"/>
+  </head>
+
+  <body>
+
+    <math>
+      <mtable rowlines="none dashed solid solid solid none dashed dashed none">
+        <mtr>
+          <mtd>
+            <mn>1</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>2</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>3</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>4</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>5</mn>
+          </mtd>
+        </mtr>
+        <mtr>
+          <mtd>
+            <mn>*</mn>
+          </mtd>
+        </mtr>
+      </mtable>
+    </math>
+
+
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/rowlines-3-1-ref.html b/testing/web-platform/mozilla/tests/mathml/tables/rowlines-3-1-ref.html
new file mode 100644
index 0000000000..04dac8cca4
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/rowlines-3-1-ref.html
@@ -0,0 +1,40 @@
+<!-- -*- mode: HTML; tab-width: 2; indent-tabs-mode: nil; -*- -->
+<!-- vim: set tabstop=2 expandtab shiftwidth=2 textwidth=80:  -->
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>mtable frame</title>
+    <!-- Copyright (c) 2011 Design Science, Inc.
+         License: Apache License 2.0 -->
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
+    <link rel="stylesheet" href="/fonts/ahem.css" />
+    <style>
+      div, math {
+        font: 25px/1 Ahem;
+      }
+    </style>
+  </head>
+
+  <body>
+
+  <div style="position: absolute; top: 5px; left: 5px;">
+    <math>
+      <mtable width="150px" rowlines="dashed">
+        <mtr>
+          <mtd><mspace></mspace></mtd>
+        </mtr>
+        <mtr>
+          <mtd><mspace></mspace></mtd>
+        </mtr>
+      </mtable>
+    </math>
+  </div>
+
+  <div style="position: absolute; top: 5px; left: 0px;
+              width: 50px; height: 50px; background: red;"></div>
+
+  <div style="position: absolute; top: 5px; left: 110px;
+              width: 50px; height: 50px; background: red;"></div>
+
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/rowlines-3-1.html b/testing/web-platform/mozilla/tests/mathml/tables/rowlines-3-1.html
new file mode 100644
index 0000000000..5d259cdbd3
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/rowlines-3-1.html
@@ -0,0 +1,60 @@
+<!-- -*- mode: HTML; tab-width: 2; indent-tabs-mode: nil; -*- -->
+<!-- vim: set tabstop=2 expandtab shiftwidth=2 textwidth=80:  -->
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>mtable frame</title>
+    <!-- Copyright (c) 2011 Design Science, Inc.
+         License: Apache License 2.0 -->
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
+    <link rel="mismatch" href="rowlines-3-1-ref.html"/>
+    <link rel="stylesheet" href="/fonts/ahem.css" />
+    <style>
+      div, math {
+        font: 25px/1 Ahem;
+      }
+    </style>
+  </head>
+
+  <body>
+
+  <!-- We assume there is a gap of more than 1px between dashes. Hence
+       putting two dashed lines with only one pixel of difference in their
+       horizontal coordinates should not render the same as one dashed line
+       alone. The opposite is true for continuous line.
+       The red squares allow to ignore the difference at the bounds -->
+
+  <div style="position: absolute; top: 5px; left: 5px;">
+    <math>
+      <mtable width="150px" rowlines="dashed">
+        <mtr>
+          <mtd><mspace></mspace></mtd>
+        </mtr>
+        <mtr>
+          <mtd><mspace></mspace></mtd>
+        </mtr>
+      </mtable>
+    </math>
+  </div>
+
+  <div style="position: absolute; top: 5px; left: 6px;">
+    <math>
+      <mtable width="150px"  rowlines="dashed">
+        <mtr>
+          <mtd><mspace></mspace></mtd>
+        </mtr>
+        <mtr>
+          <mtd><mspace></mspace></mtd>
+        </mtr>
+      </mtable>
+    </math>
+  </div>
+
+  <div style="position: absolute; top: 5px; left: 0px;
+              width: 50px; height: 50px; background: red;"></div>
+
+  <div style="position: absolute; top: 5px; left: 110px;
+              width: 50px; height: 50px; background: red;"></div>
+
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/rowlines-3-2-ref.html b/testing/web-platform/mozilla/tests/mathml/tables/rowlines-3-2-ref.html
new file mode 100644
index 0000000000..3375c87c9b
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/rowlines-3-2-ref.html
@@ -0,0 +1,40 @@
+<!-- -*- mode: HTML; tab-width: 2; indent-tabs-mode: nil; -*- -->
+<!-- vim: set tabstop=2 expandtab shiftwidth=2 textwidth=80:  -->
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>mtable frame</title>
+    <!-- Copyright (c) 2011 Design Science, Inc.
+         License: Apache License 2.0 -->
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
+    <link rel="stylesheet" href="/fonts/ahem.css" />
+    <style>
+      div, math {
+        font: 25px/1 Ahem;
+      }
+    </style>
+  </head>
+
+  <body>
+
+  <div style="position: absolute; top: 5px; left: 5px;">
+    <math>
+      <mtable width="150px" rowlines="solid">
+        <mtr>
+          <mtd><mspace></mspace></mtd>
+        </mtr>
+        <mtr>
+          <mtd><mspace></mspace></mtd>
+        </mtr>
+      </mtable>
+    </math>
+  </div>
+
+  <div style="position: absolute; top: 5px; left: 0px;
+              width: 50px; height: 50px; background: red;"></div>
+
+  <div style="position: absolute; top: 5px; left: 112px;
+              width: 50px; height: 50px; background: red;"></div>
+
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/rowlines-3-2.html b/testing/web-platform/mozilla/tests/mathml/tables/rowlines-3-2.html
new file mode 100644
index 0000000000..8b390a06d0
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/rowlines-3-2.html
@@ -0,0 +1,60 @@
+<!-- -*- mode: HTML; tab-width: 2; indent-tabs-mode: nil; -*- -->
+<!-- vim: set tabstop=2 expandtab shiftwidth=2 textwidth=80:  -->
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>mtable frame</title>
+    <!-- Copyright (c) 2011 Design Science, Inc.
+         License: Apache License 2.0 -->
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
+    <link rel="match" href="rowlines-3-2-ref.html"/>
+    <link rel="stylesheet" href="/fonts/ahem.css" />
+    <style>
+      div, math {
+        font: 25px/1 Ahem;
+      }
+    </style>
+  </head>
+
+  <body>
+
+  <!-- We assume there is a gap of more than 1px between dashes. Hence
+       putting two dashed lines with only one pixel of difference in their
+       horizontal coordinates should not render the same as one dashed line
+       alone. The opposite is true for continuous line.
+       The red squares allow to ignore the difference at the bounds -->
+
+  <div style="position: absolute; top: 5px; left: 5px;">
+    <math>
+      <mtable width="150px" rowlines="solid">
+        <mtr>
+          <mtd><mspace></mspace></mtd>
+        </mtr>
+        <mtr>
+          <mtd><mspace></mspace></mtd>
+        </mtr>
+      </mtable>
+    </math>
+  </div>
+
+  <div style="position: absolute; top: 5px; left: 6px;">
+    <math>
+      <mtable width="150px" rowlines="solid">
+        <mtr>
+          <mtd><mspace></mspace></mtd>
+        </mtr>
+        <mtr>
+          <mtd><mspace></mspace></mtd>
+        </mtr>
+      </mtable>
+    </math>
+  </div>
+
+  <div style="position: absolute; top: 5px; left: 0px;
+              width: 50px; height: 50px; background: red;"></div>
+
+  <div style="position: absolute; top: 5px; left: 112px;
+              width: 50px; height: 50px; background: red;"></div>
+
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/rowlines-dynamic-mozilla-347496-ref.xhtml b/testing/web-platform/mozilla/tests/mathml/tables/rowlines-dynamic-mozilla-347496-ref.xhtml
new file mode 100644
index 0000000000..88aaad25f3
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/rowlines-dynamic-mozilla-347496-ref.xhtml
@@ -0,0 +1,22 @@
+<html xmlns="http://www.w3.org/1999/xhtml">
+
+<body>
+
+<div><math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
+  <mfenced open="[" close="]">
+    <mtable id="table" rowlines="dashed">
+      <mtr>
+         <mtd><mi>x</mi></mtd>
+         <mtd><mi>y</mi></mtd>
+      </mtr>
+      <mtr>
+         <mtd><mi>z</mi></mtd>
+         <mtd><mi>w</mi></mtd>
+      </mtr>
+    </mtable>
+  </mfenced>
+</math></div>
+
+</body>
+
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/rowlines-dynamic-mozilla-347496.xhtml b/testing/web-platform/mozilla/tests/mathml/tables/rowlines-dynamic-mozilla-347496.xhtml
new file mode 100644
index 0000000000..2b5fc03ff9
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/rowlines-dynamic-mozilla-347496.xhtml
@@ -0,0 +1,25 @@
+<html xmlns="http://www.w3.org/1999/xhtml">
+  <head>
+    <link rel="match" href="rowlines-dynamic-mozilla-347496-ref.xhtml"/>
+  </head>
+
+<body onload="document.getElementById('table').setAttribute('rowlines', 'dashed')">
+
+<div><math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
+  <mfenced open="[" close="]">
+    <mtable id="table">
+      <mtr>
+         <mtd><mi>x</mi></mtd>
+         <mtd><mi>y</mi></mtd>
+      </mtr>
+      <mtr>
+         <mtd><mi>z</mi></mtd>
+         <mtd><mi>w</mi></mtd>
+      </mtr>
+    </mtable>
+  </mfenced>
+</math></div>
+
+</body>
+
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/semantics-4-ref.html b/testing/web-platform/mozilla/tests/mathml/tables/semantics-4-ref.html
new file mode 100644
index 0000000000..92d3236c27
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/semantics-4-ref.html
@@ -0,0 +1,24 @@
+<!DOCTYPE HTML>
+<math display="block" xmlns="http://www.w3.org/1998/Math/MathML">
+  <mtable width="100%" mathbackground="red">
+    <mtr> <mtd><mi>x</mi></mtd> </mtr>
+  </mtable>
+</math>
+
+<math display="block" xmlns="http://www.w3.org/1998/Math/MathML">
+  <mtable mathbackground="red">
+    <mtr> <mtd><mi>x</mi></mtd> </mtr>
+  </mtable>
+</math>
+
+<math display="inline" xmlns="http://www.w3.org/1998/Math/MathML">
+  <mtable width="100%" mathbackground="red">
+    <mtr> <mtd><mi>x</mi></mtd> </mtr>
+  </mtable>
+</math>
+
+<math display="inline" xmlns="http://www.w3.org/1998/Math/MathML">
+  <mtable mathbackground="red">
+    <mtr> <mtd><mi>x</mi></mtd> </mtr>
+  </mtable>
+</math>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/semantics-4.html b/testing/web-platform/mozilla/tests/mathml/tables/semantics-4.html
new file mode 100644
index 0000000000..bdd13a9c24
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/semantics-4.html
@@ -0,0 +1,41 @@
+<!DOCTYPE HTML>
+<head>
+  <link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1131000"/>
+  <link rel="match" href="semantics-4-ref.html"/>
+</head>
+
+<math display="block" xmlns="http://www.w3.org/1998/Math/MathML">
+  <semantics>
+    <mtable width="100%" mathbackground="red">
+      <mtr> <mtd><mi>x</mi></mtd> </mtr>
+    </mtable>
+    <annotation encoding="application/x-tex">y</annotation>
+  </semantics>
+</math>
+
+<math display="block" xmlns="http://www.w3.org/1998/Math/MathML">
+  <semantics>
+    <mtable mathbackground="red">
+      <mtr> <mtd><mi>x</mi></mtd> </mtr>
+    </mtable>
+    <annotation encoding="application/x-tex">y</annotation>
+  </semantics>
+</math>
+
+<math display="inline" xmlns="http://www.w3.org/1998/Math/MathML">
+  <semantics>
+    <mtable width="100%" mathbackground="red">
+      <mtr> <mtd><mi>x</mi></mtd> </mtr>
+    </mtable>
+    <annotation encoding="application/x-tex">y</annotation>
+  </semantics>
+</math>
+
+<math display="inline" xmlns="http://www.w3.org/1998/Math/MathML">
+  <semantics>
+    <mtable mathbackground="red">
+      <mtr> <mtd><mi>x</mi></mtd> </mtr>
+    </mtable>
+    <annotation encoding="application/x-tex">y</annotation>
+  </semantics>
+</math>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/spacing-attributes-001.html b/testing/web-platform/mozilla/tests/mathml/tables/spacing-attributes-001.html
new file mode 100644
index 0000000000..08e2d63ecd
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/spacing-attributes-001.html
@@ -0,0 +1,103 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test framespacing/rowspacing/columnspacing attributes</title>
+  <script src="/resources/testharness.js"></script>
+  <script src="/resources/testharnessreport.js"></script>
+  <link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=330964"/>
+</head>
+<body>
+
+<math>
+  <mtable framespacing="7px 20px" frame="solid" rowspacing="11px 27px" columnspacing="5px 16px"
+          style="border-width: 2px;" id="mtable0">
+    <mtr>
+      <mtd id="mtd0">
+        <mn>X</mn>
+      </mtd>
+      <mtd id="mtd1">
+        <mn>X</mn>
+      </mtd>
+      <mtd id="mtd2">
+        <mn>X</mn>
+      </mtd>
+    </mtr>
+    <mtr>
+      <mtd id="mtd3">
+        <mn>X</mn>
+      </mtd>
+      <mtd id="mtd4">
+        <mn>X</mn>
+      </mtd>
+      <mtd id="mtd5">
+        <mn>X</mn>
+      </mtd>
+    </mtr>
+    <mtr>
+      <mtd id="mtd6">
+        <mn>X</mn>
+      </mtd>
+      <mtd id="mtd7">
+        <mn>X</mn>
+      </mtd>
+      <mtd id="mtd8">
+        <mn>X</mn>
+      </mtd>
+    </mtr>
+  </mtable>
+</math>
+
+<script type="application/javascript">
+
+  var epsilon = 2;
+
+  rectTable = document.getElementById("mtable0").getBoundingClientRect();
+  rect0 = document.getElementById("mtd0").getBoundingClientRect();
+  rect1 = document.getElementById("mtd1").getBoundingClientRect();
+  rect2 = document.getElementById("mtd2").getBoundingClientRect();
+  rect3 = document.getElementById("mtd3").getBoundingClientRect();
+  rect4 = document.getElementById("mtd4").getBoundingClientRect();
+  rect5 = document.getElementById("mtd5").getBoundingClientRect();
+  rect6 = document.getElementById("mtd6").getBoundingClientRect();
+  rect7 = document.getElementById("mtd7").getBoundingClientRect();
+  rect8 = document.getElementById("mtd8").getBoundingClientRect();
+  test(function() {
+      assert_approx_equals(rect1.left - rect0.right, 5, epsilon);
+      assert_approx_equals(rect2.left - rect1.right, 16, epsilon);
+      assert_approx_equals(rect4.left - rect3.right, 5, epsilon);
+      assert_approx_equals(rect5.left - rect4.right, 16, epsilon);
+      assert_approx_equals(rect7.left - rect6.right, 5, epsilon);
+      assert_approx_equals(rect8.left - rect7.right, 16, epsilon);
+  }, "columnspacing");
+  test(function() {
+      assert_approx_equals(rect3.top - rect0.bottom, 11, epsilon);
+      assert_approx_equals(rect4.top - rect1.bottom, 11, epsilon);
+      assert_approx_equals(rect5.top - rect2.bottom, 11, epsilon);
+      assert_approx_equals(rect6.top - rect3.bottom, 27, epsilon);
+      assert_approx_equals(rect7.top - rect4.bottom, 27, epsilon);
+      assert_approx_equals(rect8.top - rect5.bottom, 27, epsilon);
+  }, "rowspacing");
+  // Remember to subtract border
+  test(function() {
+      assert_approx_equals(rect0.left - rectTable.left - 2, 7, epsilon);
+      assert_approx_equals(rect3.left - rectTable.left - 2, 7, epsilon);
+      assert_approx_equals(rect6.left - rectTable.left - 2, 7, epsilon);
+  }, "framespacing left");
+  test(function() {
+      assert_approx_equals(rect0.top - rectTable.top - 2, 20, epsilon);
+      assert_approx_equals(rect1.top - rectTable.top - 2, 20, epsilon);
+      assert_approx_equals(rect2.top - rectTable.top - 2, 20, epsilon);
+  }, "framespacing top");
+  test(function() {
+      assert_approx_equals(rectTable.bottom - rect6.bottom - 2, 20, epsilon);
+      assert_approx_equals(rectTable.bottom - rect7.bottom - 2, 20, epsilon);
+      assert_approx_equals(rectTable.bottom - rect8.bottom - 2, 20, epsilon);
+  }, "framespacing bottom");
+  test(function() {
+      assert_approx_equals(rectTable.right - rect2.right - 2, 7, epsilon);
+      assert_approx_equals(rectTable.right - rect5.right - 2, 7, epsilon);
+      assert_approx_equals(rectTable.right - rect8.right - 2, 7, epsilon);
+  }, "framespacing right");
+</script>
+</body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-1-ref.html b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-1-ref.html
new file mode 100644
index 0000000000..3ad0881e22
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-1-ref.html
@@ -0,0 +1,66 @@
+<!DOCTYPE html>
+<html>
+  <head><title>Table spacing default values</title></head>
+  <body>
+
+    <p>
+      <math>
+        <mtable rowspacing="1.0ex" columnspacing="0.8em" framespacing="0em 0ex">
+          <mtr>
+            <mtd>
+              <mtext>a</mtext>
+            </mtd>
+            <mtd>
+              <mtext>b</mtext>
+            </mtd>
+            <mtd>
+              <mtext>c</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>d</mtext>
+            </mtd>
+            <mtd>
+              <mtext>e</mtext>
+            </mtd>
+            <mtd>
+              <mtext>f</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </math>
+    </p>
+    <p>
+      <math >
+        <mtable frame="solid" rowspacing="1.0ex" columnspacing="0.8em" framespacing="0.4em 0.5ex">
+          <mtr>
+            <mtd>
+              <mtext>a</mtext>
+            </mtd>
+            <mtd>
+              <mtext>b</mtext>
+            </mtd>
+            <mtd>
+              <mtext>c</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>d</mtext>
+            </mtd>
+            <mtd>
+              <mtext>e</mtext>
+            </mtd>
+            <mtd>
+              <mtext>f</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </math>
+
+
+    </p>
+
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-1.html b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-1.html
new file mode 100644
index 0000000000..0259e6dea2
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-1.html
@@ -0,0 +1,69 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Table spacing default values</title>
+    <link rel="match" href="tablespacing-1-ref.html"/>
+  </head>
+  <body>
+
+    <p>
+      <math>
+        <mtable rowspacing="">
+          <mtr>
+            <mtd>
+              <mtext>a</mtext>
+            </mtd>
+            <mtd>
+              <mtext>b</mtext>
+            </mtd>
+            <mtd>
+              <mtext>c</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>d</mtext>
+            </mtd>
+            <mtd>
+              <mtext>e</mtext>
+            </mtd>
+            <mtd>
+              <mtext>f</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </math>
+    </p>
+    <p>
+      <math>
+        <mtable frame="solid" rowspacing="">
+          <mtr>
+            <mtd>
+              <mtext>a</mtext>
+            </mtd>
+            <mtd>
+              <mtext>b</mtext>
+            </mtd>
+            <mtd>
+              <mtext>c</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>d</mtext>
+            </mtd>
+            <mtd>
+              <mtext>e</mtext>
+            </mtd>
+            <mtd>
+              <mtext>f</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </math>
+
+
+    </p>
+
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-2-ref.html b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-2-ref.html
new file mode 100644
index 0000000000..0bf2e4822a
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-2-ref.html
@@ -0,0 +1,134 @@
+<!DOCTYPE html>
+<html>
+  <head><title>Additional values ignored and insufficient ones expanded</title></head>
+  <body>
+
+    <p>
+      <math>
+        <mtable rowspacing="1.0ex 3.0ex 7.0ex" columnspacing="0.8em 2em 3em" framespacing="0em 0ex">
+          <mtr>
+            <mtd>
+              <mtext>a</mtext>
+            </mtd>
+            <mtd>
+              <mtext>b</mtext>
+            </mtd>
+            <mtd>
+              <mtext>c</mtext>
+            </mtd>
+            <mtd>
+              <mtext>d</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>e</mtext>
+            </mtd>
+            <mtd>
+              <mtext>f</mtext>
+            </mtd>
+            <mtd>
+              <mtext>g</mtext>
+            </mtd>
+            <mtd>
+              <mtext>h</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>i</mtext>
+            </mtd>
+            <mtd>
+              <mtext>j</mtext>
+            </mtd>
+            <mtd>
+              <mtext>k</mtext>
+            </mtd>
+            <mtd>
+              <mtext>l</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>m</mtext>
+            </mtd>
+            <mtd>
+              <mtext>n</mtext>
+            </mtd>
+            <mtd>
+              <mtext>o</mtext>
+            </mtd>
+            <mtd>
+              <mtext>p</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </math>
+    </p>
+    <p>
+      <math>
+        <mtable rowspacing="1.0ex 3.0ex 3.0ex" columnspacing="0.8em 2em 2em">
+          <mtr>
+            <mtd>
+              <mtext>a</mtext>
+            </mtd>
+            <mtd>
+              <mtext>b</mtext>
+            </mtd>
+            <mtd>
+              <mtext>c</mtext>
+            </mtd>
+            <mtd>
+              <mtext>d</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>e</mtext>
+            </mtd>
+            <mtd>
+              <mtext>f</mtext>
+            </mtd>
+            <mtd>
+              <mtext>g</mtext>
+            </mtd>
+            <mtd>
+              <mtext>h</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>i</mtext>
+            </mtd>
+            <mtd>
+              <mtext>j</mtext>
+            </mtd>
+            <mtd>
+              <mtext>k</mtext>
+            </mtd>
+            <mtd>
+              <mtext>l</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>m</mtext>
+            </mtd>
+            <mtd>
+              <mtext>n</mtext>
+            </mtd>
+            <mtd>
+              <mtext>o</mtext>
+            </mtd>
+            <mtd>
+              <mtext>p</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </math>
+
+
+    </p>
+
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-2.html b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-2.html
new file mode 100644
index 0000000000..e5b2aa33a2
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-2.html
@@ -0,0 +1,137 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Additional values ignored and insufficient ones expanded</title>
+    <link rel="match" href="tablespacing-2-ref.html"/>
+  </head>
+  <body>
+
+    <p>
+      <math>
+        <mtable rowspacing="1.0ex 3.0ex 7.0ex 10ex 12ex" columnspacing="0.8em 2em 3em 5em 7em" framespacing="6em 9ex">
+          <mtr>
+            <mtd>
+              <mtext>a</mtext>
+            </mtd>
+            <mtd>
+              <mtext>b</mtext>
+            </mtd>
+            <mtd>
+              <mtext>c</mtext>
+            </mtd>
+            <mtd>
+              <mtext>d</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>e</mtext>
+            </mtd>
+            <mtd>
+              <mtext>f</mtext>
+            </mtd>
+            <mtd>
+              <mtext>g</mtext>
+            </mtd>
+            <mtd>
+              <mtext>h</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>i</mtext>
+            </mtd>
+            <mtd>
+              <mtext>j</mtext>
+            </mtd>
+            <mtd>
+              <mtext>k</mtext>
+            </mtd>
+            <mtd>
+              <mtext>l</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>m</mtext>
+            </mtd>
+            <mtd>
+              <mtext>n</mtext>
+            </mtd>
+            <mtd>
+              <mtext>o</mtext>
+            </mtd>
+            <mtd>
+              <mtext>p</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </math>
+    </p>
+    <p>
+      <math>
+        <mtable  rowspacing="1.0ex 3.0ex" columnspacing="0.8em 2em">
+          <mtr>
+            <mtd>
+              <mtext>a</mtext>
+            </mtd>
+            <mtd>
+              <mtext>b</mtext>
+            </mtd>
+            <mtd>
+              <mtext>c</mtext>
+            </mtd>
+            <mtd>
+              <mtext>d</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>e</mtext>
+            </mtd>
+            <mtd>
+              <mtext>f</mtext>
+            </mtd>
+            <mtd>
+              <mtext>g</mtext>
+            </mtd>
+            <mtd>
+              <mtext>h</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>i</mtext>
+            </mtd>
+            <mtd>
+              <mtext>j</mtext>
+            </mtd>
+            <mtd>
+              <mtext>k</mtext>
+            </mtd>
+            <mtd>
+              <mtext>l</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>m</mtext>
+            </mtd>
+            <mtd>
+              <mtext>n</mtext>
+            </mtd>
+            <mtd>
+              <mtext>o</mtext>
+            </mtd>
+            <mtd>
+              <mtext>p</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </math>
+
+
+    </p>
+
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-3-ref.html b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-3-ref.html
new file mode 100644
index 0000000000..f4180d8dfb
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-3-ref.html
@@ -0,0 +1,133 @@
+<!DOCTYPE html>
+<html>
+  <head><title>Single value for rowspacing/columnspacing accepted</title></head>
+  <body>
+
+    <p>
+      <math>
+        <mtable columnspacing="4em 4em 4em">
+          <mtr>
+            <mtd>
+              <mtext>a</mtext>
+            </mtd>
+            <mtd>
+              <mtext>b</mtext>
+            </mtd>
+            <mtd>
+              <mtext>c</mtext>
+            </mtd>
+            <mtd>
+              <mtext>d</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>e</mtext>
+            </mtd>
+            <mtd>
+              <mtext>f</mtext>
+            </mtd>
+            <mtd>
+              <mtext>g</mtext>
+            </mtd>
+            <mtd>
+              <mtext>h</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>i</mtext>
+            </mtd>
+            <mtd>
+              <mtext>j</mtext>
+            </mtd>
+            <mtd>
+              <mtext>k</mtext>
+            </mtd>
+            <mtd>
+              <mtext>l</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>m</mtext>
+            </mtd>
+            <mtd>
+              <mtext>n</mtext>
+            </mtd>
+            <mtd>
+              <mtext>o</mtext>
+            </mtd>
+            <mtd>
+              <mtext>p</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </math>
+    </p>
+    <p>
+      <math>
+        <mtable rowspacing="4.0ex 4.0ex 4.0ex">
+          <mtr>
+            <mtd>
+              <mtext>a</mtext>
+            </mtd>
+            <mtd>
+              <mtext>b</mtext>
+            </mtd>
+            <mtd>
+              <mtext>c</mtext>
+            </mtd>
+            <mtd>
+              <mtext>d</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>e</mtext>
+            </mtd>
+            <mtd>
+              <mtext>f</mtext>
+            </mtd>
+            <mtd>
+              <mtext>g</mtext>
+            </mtd>
+            <mtd>
+              <mtext>h</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>i</mtext>
+            </mtd>
+            <mtd>
+              <mtext>j</mtext>
+            </mtd>
+            <mtd>
+              <mtext>k</mtext>
+            </mtd>
+            <mtd>
+              <mtext>l</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>m</mtext>
+            </mtd>
+            <mtd>
+              <mtext>n</mtext>
+            </mtd>
+            <mtd>
+              <mtext>o</mtext>
+            </mtd>
+            <mtd>
+              <mtext>p</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </math>
+
+    </p>
+
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-3.html b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-3.html
new file mode 100644
index 0000000000..65a4bf5839
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-3.html
@@ -0,0 +1,136 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Single value for rowspacing/columnspacing accepted</title>
+    <link rel="match" href="tablespacing-3-ref.html"/>
+  </head>
+  <body>
+
+    <p>
+      <math>
+        <mtable  columnspacing="4em">
+          <mtr>
+            <mtd>
+              <mtext>a</mtext>
+            </mtd>
+            <mtd>
+              <mtext>b</mtext>
+            </mtd>
+            <mtd>
+              <mtext>c</mtext>
+            </mtd>
+            <mtd>
+              <mtext>d</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>e</mtext>
+            </mtd>
+            <mtd>
+              <mtext>f</mtext>
+            </mtd>
+            <mtd>
+              <mtext>g</mtext>
+            </mtd>
+            <mtd>
+              <mtext>h</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>i</mtext>
+            </mtd>
+            <mtd>
+              <mtext>j</mtext>
+            </mtd>
+            <mtd>
+              <mtext>k</mtext>
+            </mtd>
+            <mtd>
+              <mtext>l</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>m</mtext>
+            </mtd>
+            <mtd>
+              <mtext>n</mtext>
+            </mtd>
+            <mtd>
+              <mtext>o</mtext>
+            </mtd>
+            <mtd>
+              <mtext>p</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </math>
+    </p>
+    <p>
+      <math>
+        <mtable rowspacing="4.0ex">
+          <mtr>
+            <mtd>
+              <mtext>a</mtext>
+            </mtd>
+            <mtd>
+              <mtext>b</mtext>
+            </mtd>
+            <mtd>
+              <mtext>c</mtext>
+            </mtd>
+            <mtd>
+              <mtext>d</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>e</mtext>
+            </mtd>
+            <mtd>
+              <mtext>f</mtext>
+            </mtd>
+            <mtd>
+              <mtext>g</mtext>
+            </mtd>
+            <mtd>
+              <mtext>h</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>i</mtext>
+            </mtd>
+            <mtd>
+              <mtext>j</mtext>
+            </mtd>
+            <mtd>
+              <mtext>k</mtext>
+            </mtd>
+            <mtd>
+              <mtext>l</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>m</mtext>
+            </mtd>
+            <mtd>
+              <mtext>n</mtext>
+            </mtd>
+            <mtd>
+              <mtext>o</mtext>
+            </mtd>
+            <mtd>
+              <mtext>p</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </math>
+
+    </p>
+
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-4-ref.html b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-4-ref.html
new file mode 100644
index 0000000000..42474859e7
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-4-ref.html
@@ -0,0 +1,95 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Dynamic tests involving adding and removing elements</title>
+    <meta charset="utf-8"/>
+  </head>
+  <body>
+  <math>
+    <mtable columnspacing="5em 7em">
+      <mtr>
+        <mtd>
+          <mn>x</mn>
+        </mtd>
+        <mtd>
+          <mn>y</mn>
+        </mtd>
+        <mtd>
+          <mn>z</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <math>
+    <mtable  columnspacing="5em">
+      <mtr>
+        <mtd>
+          <mn>x</mn>
+        </mtd>
+        <mtd>
+          <mn>z</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <math>
+    <mtable rowspacing="2ex 4ex">
+      <mtr>
+        <mtd>
+          <mn>x</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>y</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>z</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <math>
+    <mtable  rowspacing="2ex">
+      <mtr>
+        <mtd>
+          <mn>x</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>z</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <math>
+    <mtable  rowspacing="2ex 4ex" columnspacing="4em">
+      <mtr>
+        <mtd>
+          <mn>x</mn>
+        </mtd>
+        <mtd>
+          <mn>w</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>y</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>z</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-4.html b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-4.html
new file mode 100644
index 0000000000..25d27b4479
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-4.html
@@ -0,0 +1,124 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+  <head>
+    <title>Dynamic tests involving adding and removing elements</title>
+    <meta charset="utf-8"/>
+    <link rel="match" href="tablespacing-4-ref.html"/>
+  </head>
+  <body>
+  <math>
+    <mtable columnspacing="5em 7em" id="mtable0a">
+      <mtr id="mtr0">
+        <mtd>
+          <mn>x</mn>
+        </mtd>
+        <mtd>
+          <mn>y</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <math>
+    <mtable  columnspacing="5em 7em">
+      <mtr id="mtr0a">
+        <mtd>
+          <mn>x</mn>
+        </mtd>
+        <mtd id="mtd0">
+          <mn>y</mn>
+        </mtd>
+        <mtd>
+          <mn>z</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <math>
+    <mtable rowspacing="2ex 4ex" id="mtable0">
+      <mtr>
+        <mtd>
+          <mn>x</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>y</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <math>
+    <mtable  rowspacing="2ex 4ex" id="mtable1">
+      <mtr>
+        <mtd>
+          <mn>x</mn>
+        </mtd>
+      </mtr>
+      <mtr id="mtr1">
+        <mtd>
+          <mn>y</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>z</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <math>
+    <mtable  rowspacing="2ex 4ex" columnspacing="4em">
+      <mtr id="mtr2">
+        <mtd>
+          <mn>x</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>y</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>z</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <script>
+    function doTest() {
+      // Add a table cell
+      var mn0 = document.createElementNS("http://www.w3.org/1998/Math/MathML", "mn");
+      mn0.innerHTML = 'z';
+      var mtd0 = document.createElementNS("http://www.w3.org/1998/Math/MathML", "mtd");
+      mtd0.appendChild(mn0);
+      document.getElementById("mtr0").appendChild(mtd0);
+      // Remove a table cell
+      document.getElementById("mtr0a").removeChild(document.getElementById("mtd0"));
+      // Add a table row
+      var mn1 = document.createElementNS("http://www.w3.org/1998/Math/MathML", "mn");
+      mn1.innerHTML = 'z';
+      var mtd1 = document.createElementNS("http://www.w3.org/1998/Math/MathML", "mtd");
+      mtd1.appendChild(mn1);
+      var mtr1 = document.createElementNS("http://www.w3.org/1998/Math/MathML", "mtr");
+      mtr1.appendChild(mtd1);
+      document.getElementById("mtable0").appendChild(mtr1);
+      // Remove a table row
+      document.getElementById("mtable1").removeChild(document.getElementById("mtr1"));
+      // Add a table cell to a table containing several rows
+      var mn2 = document.createElementNS("http://www.w3.org/1998/Math/MathML", "mn");
+      mn2.innerHTML = 'w';
+      var mtd2 = document.createElementNS("http://www.w3.org/1998/Math/MathML", "mtd");
+      mtd2.appendChild(mn2);
+      document.getElementById("mtr2").appendChild(mtd2);
+
+      document.documentElement.removeAttribute("class");
+    }
+    document.documentElement.addEventListener("TestRendered", doTest);
+  </script>
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-5-ref.html b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-5-ref.html
new file mode 100644
index 0000000000..c79ccd1e88
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-5-ref.html
@@ -0,0 +1,274 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Dynamic tests involving changes to row/column/framespacing</title>
+    <meta charset="utf-8"/>
+  </head>
+  <body>
+  <math>
+    <mtable id="mtable0" >
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <math>
+    <mtable id="mtable1">
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <math>
+    <mtable id="mtable2" frame="solid">
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <math>
+    <mtable id="mtable3" rowspacing="2ex 4ex">
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <math>
+    <mtable id="mtable4"  columnspacing="2em 3em" >
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <math>
+    <mtable id="mtable5"  framespacing="2em 2ex" frame="solid">
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <math>
+    <mtable id="mtable6">
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-5.html b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-5.html
new file mode 100644
index 0000000000..61595de845
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-5.html
@@ -0,0 +1,296 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+  <head>
+    <title>Dynamic tests involving changes to row/column/framespacing</title>
+    <meta charset="utf-8"/>
+    <link rel="match" href="tablespacing-5-ref.html"/>
+  </head>
+  <body>
+  <math>
+    <mtable id="mtable0" rowspacing="2ex 3ex">
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <math>
+    <mtable id="mtable1" columnspacing="2em 3em">
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <math>
+    <mtable id="mtable2" framespacing="2em 2ex" frame="solid">
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <math>
+    <mtable id="mtable3" >
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <math>
+    <mtable id="mtable4" >
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <math>
+    <mtable id="mtable5" frame="solid">
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <math>
+    <mtable id="mtable6" frame="none">
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <script>
+    function doTest() {
+      // remove spacing attributes
+      document.getElementById("mtable0").removeAttribute("rowspacing");
+      document.getElementById("mtable1").removeAttribute("columnspacing");
+      document.getElementById("mtable2").removeAttribute("framespacing");
+
+      // add spacing attributes
+      document.getElementById("mtable3").setAttribute("rowspacing", "2ex 4ex");
+      document.getElementById("mtable4").setAttribute("columnspacing", "2em 3em");
+      document.getElementById("mtable5").setAttribute("framespacing", "2em 2ex");
+
+      // framespacing doesn't apply with frame="none"
+      document.getElementById("mtable6").setAttribute("framespacing", "2em 2ex");
+
+      document.documentElement.removeAttribute("class");
+    }
+    document.documentElement.addEventListener("TestRendered", doTest);
+
+  </script>
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-5a-ref.html b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-5a-ref.html
new file mode 100644
index 0000000000..4d0820805c
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-5a-ref.html
@@ -0,0 +1,278 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Dynamic tests involving changes to row/column/framespacing</title>
+    <meta charset="utf-8"/>
+  </head>
+  <body>
+  <!--  There are at present two implementations of mtable spacing behaviour,
+        one based on CSS and the other on rowspacing/columnspacing/framespacing
+        attributes which the user can select.  This reftest tests that dynamic
+        transitions from one system to the other work appropriately. -->
+  <math>
+    <mtable id="mtable0" columnspacing="">
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <math>
+    <mtable id="mtable1" rowspacing="">
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <math>
+    <mtable id="mtable2" frame="solid" rowspacing="">
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <math>
+    <mtable id="mtable3" rowspacing="2ex 4ex" columspacing="">
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <math>
+    <mtable id="mtable4"  columnspacing="2em 3em" rowspacing="">
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <math>
+    <mtable id="mtable5"  framespacing="2em 2ex" frame="solid" rowspacing="">
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <math>
+    <mtable id="mtable6" rowspacing="">
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-5a.html b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-5a.html
new file mode 100644
index 0000000000..8269e599b3
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-5a.html
@@ -0,0 +1,296 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+  <head>
+    <title>Dynamic tests involving changes to row/column/framespacing</title>
+    <meta charset="utf-8"/>
+    <link rel="match" href="tablespacing-5a-ref.html"/>
+  </head>
+  <body>
+  <math>
+    <mtable id="mtable0" rowspacing="2ex 3ex" columnspacing="">
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <math>
+    <mtable id="mtable1" columnspacing="2em 3em" rowspacing="">
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <math>
+    <mtable id="mtable2" framespacing="2em 2ex" frame="solid" rowspacing="">
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <math>
+    <mtable id="mtable3" columspacing="">
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <math>
+    <mtable id="mtable4" rowspacing="">
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <math>
+    <mtable id="mtable5" frame="solid" rowspacing="">
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <math>
+    <mtable id="mtable6" frame="none" rowspacing="">
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <script>
+    function doTest() {
+      // remove spacing attributes
+      document.getElementById("mtable0").removeAttribute("rowspacing");
+      document.getElementById("mtable1").removeAttribute("columnspacing");
+      document.getElementById("mtable2").removeAttribute("framespacing");
+
+      // add spacing attributes
+      document.getElementById("mtable3").setAttribute("rowspacing", "2ex 4ex");
+      document.getElementById("mtable4").setAttribute("columnspacing", "2em 3em");
+      document.getElementById("mtable5").setAttribute("framespacing", "2em 2ex");
+
+      // framespacing doesn't apply with frame="none"
+      document.getElementById("mtable6").setAttribute("framespacing", "2em 2ex");
+
+      document.documentElement.removeAttribute("class");
+    }
+    document.documentElement.addEventListener("TestRendered", doTest);
+
+  </script>
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-6-ref.html b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-6-ref.html
new file mode 100644
index 0000000000..a08f5a0ca5
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-6-ref.html
@@ -0,0 +1,123 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Dynamic tests involving changes to row/column/framespacing</title>
+    <meta charset="utf-8"/>
+  </head>
+  <body>
+  <math>
+    <mtable id="mtable0" rowspacing="3ex 7ex">
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <math>
+    <mtable id="mtable1" columnspacing="3em 7em">
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <math>
+    <mtable id="mtable2" framespacing="3em 7ex" frame="solid">
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-6.html b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-6.html
new file mode 100644
index 0000000000..96fa362494
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-6.html
@@ -0,0 +1,136 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+  <head>
+    <title>Dynamic tests involving changes to row/column/framespacing</title>
+    <meta charset="utf-8"/>
+    <link rel="match" href="tablespacing-6-ref.html"/>
+  </head>
+  <body>
+  <math>
+    <mtable id="mtable0" rowspacing="2ex 3ex">
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <math>
+    <mtable id="mtable1" columnspacing="2em 3em">
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <math>
+    <mtable id="mtable2" framespacing="2em 2ex" frame="solid">
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+  <p>
+  <script>
+    function doTest() {
+
+      // modify existing spacing attributes
+      document.getElementById("mtable0").setAttribute("rowspacing", "3ex 7ex");
+      document.getElementById("mtable1").setAttribute("columnspacing", "3em 7em");
+      document.getElementById("mtable2").setAttribute("framespacing", "3em 7ex");
+
+      document.documentElement.removeAttribute("class");
+    }
+    document.documentElement.addEventListener("TestRendered", doTest);
+  </script>
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-7-ref.html b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-7-ref.html
new file mode 100644
index 0000000000..ad2d53b03e
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-7-ref.html
@@ -0,0 +1,97 @@
+<!DOCTYPE html>
+<html>
+  <head><title>Table spacing error handling</title></head>
+  <body>
+
+    <p>
+      <math>
+        <mtable frame="solid" rowspacing="5.0ex 1.0ex">
+          <mtr>
+            <mtd>
+              <mtext>a</mtext>
+            </mtd>
+            <mtd>
+              <mtext>b</mtext>
+            </mtd>
+            <mtd>
+              <mtext>c</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>d</mtext>
+            </mtd>
+            <mtd>
+              <mtext>e</mtext>
+            </mtd>
+            <mtd>
+              <mtext>f</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </math>
+    </p>
+    <p>
+      <math >
+        <mtable frame="solid" columnspacing="5em 0.8em">
+          <mtr>
+            <mtd>
+              <mtext>a</mtext>
+            </mtd>
+            <mtd>
+              <mtext>b</mtext>
+            </mtd>
+            <mtd>
+              <mtext>c</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>d</mtext>
+            </mtd>
+            <mtd>
+              <mtext>e</mtext>
+            </mtd>
+            <mtd>
+              <mtext>f</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </math>
+
+
+    </p>
+
+    <p>
+      <math >
+        <mtable frame="solid" framespacing="0.4em 0.5ex">
+          <mtr>
+            <mtd>
+              <mtext>a</mtext>
+            </mtd>
+            <mtd>
+              <mtext>b</mtext>
+            </mtd>
+            <mtd>
+              <mtext>c</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>d</mtext>
+            </mtd>
+            <mtd>
+              <mtext>e</mtext>
+            </mtd>
+            <mtd>
+              <mtext>f</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </math>
+
+
+    </p>
+
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-7.html b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-7.html
new file mode 100644
index 0000000000..5d51bfd3e2
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-7.html
@@ -0,0 +1,100 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Table spacing error handling</title>
+    <link rel="match" href="tablespacing-7-ref.html"/>
+  </head>
+  <body>
+
+    <p>
+      <math>
+        <mtable frame="solid" rowspacing="5.0ex cat">
+          <mtr>
+            <mtd>
+              <mtext>a</mtext>
+            </mtd>
+            <mtd>
+              <mtext>b</mtext>
+            </mtd>
+            <mtd>
+              <mtext>c</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>d</mtext>
+            </mtd>
+            <mtd>
+              <mtext>e</mtext>
+            </mtd>
+            <mtd>
+              <mtext>f</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </math>
+    </p>
+    <p>
+      <math >
+        <mtable frame="solid" columnspacing="5em cat">
+          <mtr>
+            <mtd>
+              <mtext>a</mtext>
+            </mtd>
+            <mtd>
+              <mtext>b</mtext>
+            </mtd>
+            <mtd>
+              <mtext>c</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>d</mtext>
+            </mtd>
+            <mtd>
+              <mtext>e</mtext>
+            </mtd>
+            <mtd>
+              <mtext>f</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </math>
+
+
+    </p>
+
+    <p>
+      <math >
+        <mtable frame="solid" framespacing="0.4em cat">
+          <mtr>
+            <mtd>
+              <mtext>a</mtext>
+            </mtd>
+            <mtd>
+              <mtext>b</mtext>
+            </mtd>
+            <mtd>
+              <mtext>c</mtext>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd>
+              <mtext>d</mtext>
+            </mtd>
+            <mtd>
+              <mtext>e</mtext>
+            </mtd>
+            <mtd>
+              <mtext>f</mtext>
+            </mtd>
+          </mtr>
+        </mtable>
+      </math>
+
+
+    </p>
+
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-8-ref.html b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-8-ref.html
new file mode 100644
index 0000000000..a39c15b3d6
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-8-ref.html
@@ -0,0 +1,38 @@
+<!-- -*- mode: HTML; tab-width: 2; indent-tabs-mode: nil; -*- -->
+<!-- vim: set tabstop=2 expandtab shiftwidth=2 textwidth=80:  -->
+<!DOCTYPE html>
+<html>
+  <body>
+
+  <math>
+    <mtable  rowspacing="30px" columnspacing="30px">
+      <mtr>
+        <mtd>
+          <mspace width="50px" height="30px"></mspace>
+        </mtd>
+        <mtd>
+          <mspace width="50px" height="30px"></mspace>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mspace width="50px" height="30px"></mspace>
+        </mtd>
+        <mtd>
+          <mspace width="50px" height="30px"></mspace>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+
+  <div style="position: absolute; top: 0; left: 0px;
+              width: 150px; height: 40px; background: black;"></div>
+  <div style="position: absolute; top: 70px; left: 0px;
+              width: 150px; height: 40px; background: black;"></div>
+  <div style="position: absolute; top: 0px; left: 0px;
+              width: 60px; height: 100px; background: black;"></div>
+  <div style="position: absolute; top: 0px; left: 90px;
+              width: 60px; height: 100px; background: black;"></div>
+
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-8a.html b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-8a.html
new file mode 100644
index 0000000000..9ed7adf31d
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-8a.html
@@ -0,0 +1,42 @@
+<!-- -*- mode: HTML; tab-width: 2; indent-tabs-mode: nil; -*- -->
+<!-- vim: set tabstop=2 expandtab shiftwidth=2 textwidth=80:  -->
+<!DOCTYPE html>
+<html>
+  <head>
+    <link rel="mismatch" href="tablespacing-8-ref.html"/>
+  </head>
+  <body>
+
+  <math>
+    <mtable  rowspacing="30px" columnspacing="60px"
+           rowlines="solid">
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+
+  <div style="position: absolute; top: 0; left: 0px;
+              width: 150px; height: 40px; background: black;"></div>
+  <div style="position: absolute; top: 70px; left: 0px;
+              width: 150px; height: 40px; background: black;"></div>
+  <div style="position: absolute; top: 0px; left: 0px;
+              width: 60px; height: 100px; background: black;"></div>
+  <div style="position: absolute; top: 0px; left: 90px;
+              width: 60px; height: 100px; background: black;"></div>
+
+  </body>
+</html>
diff --git a/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-8b.html b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-8b.html
new file mode 100644
index 0000000000..ff01ce9e73
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/mathml/tables/tablespacing-8b.html
@@ -0,0 +1,41 @@
+<!-- -*- mode: HTML; tab-width: 2; indent-tabs-mode: nil; -*- -->
+<!-- vim: set tabstop=2 expandtab shiftwidth=2 textwidth=80:  -->
+<!DOCTYPE html>
+<html>
+  <head>
+    <link rel="mismatch" href="tablespacing-8-ref.html"/>
+  </head>
+  <body>
+
+  <math>
+    <mtable  rowspacing="20px" columnspacing="100px"
+           columnlines="solid">
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+      <mtr>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+        <mtd>
+          <mn>X</mn>
+        </mtd>
+      </mtr>
+    </mtable>
+  </math>
+
+  <div style="position: absolute; top: 0; left: 0px;
+              width: 150px; height: 40px; background: black;"></div>
+  <div style="position: absolute; top: 70px; left: 0px;
+              width: 150px; height: 40px; background: black;"></div>
+  <div style="position: absolute; top: 0px; left: 0px;
+              width: 60px; height: 100px; background: black;"></div>
+  <div style="position: absolute; top: 0px; left: 90px;
+              width: 60px; height: 100px; background: black;"></div>
+  </body>
+</html>
author	Daniel Baumann <daniel.baumann@progress-linux.org>	2024-04-19 00:47:55 +0000
committer	Daniel Baumann <daniel.baumann@progress-linux.org>	2024-04-19 00:47:55 +0000
commit	26a029d407be480d791972afb5975cf62c9360a6 (patch)
tree	f435a8308119effd964b339f76abb83a57c29483 /testing/web-platform/mozilla/tests/mathml/tables
parent	Initial commit. (diff)
download	firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip