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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 01:13:33 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 01:13:33 +0000
commit086c044dc34dfc0f74fbe41f4ecb402b2cd34884 (patch)
treea4f824bd33cb075dd5aa3eb5a0a94af221bbe83a /testing/web-platform/tests/mathml/presentation-markup/mrow
parentAdding debian version 124.0.1-1. (diff)
downloadfirefox-086c044dc34dfc0f74fbe41f4ecb402b2cd34884.tar.xz
firefox-086c044dc34dfc0f74fbe41f4ecb402b2cd34884.zip
Merging upstream version 125.0.1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/mathml/presentation-markup/mrow')
-rw-r--r--testing/web-platform/tests/mathml/presentation-markup/mrow/legacy-mstyle-attributes.html136
-rw-r--r--testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-001-ref.html22
-rw-r--r--testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-001.html24
-rw-r--r--testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-002-ref.html12
-rw-r--r--testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-002.html16
-rw-r--r--testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-003-ref.html13
-rw-r--r--testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-003.html17
-rw-r--r--testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-004-ref.html41
-rw-r--r--testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-004.html47
-rw-r--r--testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-005-ref.html11
-rw-r--r--testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-005.html15
11 files changed, 337 insertions, 17 deletions
diff --git a/testing/web-platform/tests/mathml/presentation-markup/mrow/legacy-mstyle-attributes.html b/testing/web-platform/tests/mathml/presentation-markup/mrow/legacy-mstyle-attributes.html
index 2463c40476..0b14ac5334 100644
--- a/testing/web-platform/tests/mathml/presentation-markup/mrow/legacy-mstyle-attributes.html
+++ b/testing/web-platform/tests/mathml/presentation-markup/mrow/legacy-mstyle-attributes.html
@@ -35,11 +35,12 @@
</head>
<body>
<div id="log"></div>
- <!-- Note: mpadded attributes are not tested since MathML3 did not allow to
- set them from mstyle. Also, it is not clear whether munderover's
- accent/accentunder could be applied from mstyle, given that the former
- clashes with mo@accent. Other legacy mstyle attributes not in MathML
- Core or without visual effect are not tested.
+ <!-- Note: In earlier versions of MathML, putting some attributes on the
+ mstyle element was supposed to produce the same rendering as putting them
+ on the all descendants (with some exceptions). In MathML Core, relevant
+ style attributes are implemented as CSS properties and are no longer
+ specific to the mstyle element. The tests below verify that attributes
+ on mstyle that are not mapped to CSS have no effect.
-->
<p class="TestContainer" id="mspace">
<math>
@@ -84,12 +85,12 @@
<mn>3</mn>
</munder>
</mstyle>
- <mstyle accent="false">
- <mover>
- <mn>4</mn>
- <mo>⇀</mo>
- </mover>
- </mstyle>
+ <!-- Note: accent was a shared attribute name for mover and mo, so
+ make mstyle an ancestor of mo but not of mover. -->
+ <mover>
+ <mn>4</mn>
+ <mstyle accent="false"><mo>⇀</mo></mstyle>
+ </mover>
<mstyle stretchy="false" symmetric="false" maxsize="20px">
<mrow>
<mo>|</mo>
@@ -102,6 +103,15 @@
<mn>4</mn>
</mrow>
</mstyle>
+ <mstyle form="prefix">
+ <mrow>
+ <mn>1</mn>
+ <!-- Infix and prefix forms of − do not have the same lspace/rspace
+ values in the operator dictionary -->
+ <mo>−</mo>
+ <mn>2</mn>
+ </mrow>
+ </mstyle>
</math>
<math displaystyle="true">
<mstyle>
@@ -115,12 +125,10 @@
<mn>3</mn>
</munder>
</mstyle>
- <mstyle>
- <mover>
- <mn>4</mn>
- <mo>⇀</mo>
- </mover>
- </mstyle>
+ <mover>
+ <mn>4</mn>
+ <mstyle><mo>⇀</mo></mstyle>
+ </mover>
<mstyle>
<mrow>
<mo>|</mo>
@@ -133,6 +141,13 @@
<mn>4</mn>
</mrow>
</mstyle>
+ <mstyle>
+ <mrow>
+ <mn>1</mn>
+ <mo>−</mo>
+ <mn>2</mn>
+ </mrow>
+ </mstyle>
</math>
</p>
<!-- notation attribute is from MathML3's menclose element -->
@@ -160,5 +175,92 @@
</mstyle>
</math>
</p>
+ <p class="TestContainer" id="mpadded">
+ <math>
+ <mstyle width="100px" height="50px" depth="50px"
+ lspace="10px" voffset="15px">
+ <mpadded style="background: lightblue">
+ <mspace width="10px" height="10px" style="background: black"></mspace>
+ </mpadded>
+ </mstyle>
+ </math>
+ <math>
+ <mstyle>
+ <mpadded style="background: lightblue">
+ <mspace width="10px" height="10px" style="background: black"></mspace>
+ </mpadded>
+ </mstyle>
+ </math>
+ </p>
+ <p class="TestContainer" id="mover">
+ <math>
+ <mstyle accent="true">
+ <mover>
+ <mn>1</mn>
+ <mn>2</mn>
+ </mover>
+ </mstyle>
+ </math>
+ <math>
+ <mstyle>
+ <mover>
+ <mn>1</mn>
+ <mn>2</mn>
+ </mover>
+ </mstyle>
+ </math>
+ </p>
+ <p class="TestContainer" id="munder">
+ <math>
+ <mstyle accentunder="true">
+ <munder>
+ <mn>1</mn>
+ <mn>2</mn>
+ </munder>
+ </mstyle>
+ </math>
+ <math>
+ <mstyle>
+ <munder>
+ <mn>1</mn>
+ <mn>2</mn>
+ </munder>
+ </mstyle>
+ </math>
+ </p>
+ <p class="TestContainer" id="munderover">
+ <math>
+ <mstyle accent="true">
+ <munderover>
+ <mn>1</mn>
+ <mn>2</mn>
+ <mn>3</mn>
+ </munderover>
+ </mstyle>
+ <mstyle accentunder="true">
+ <munderover>
+ <mn>1</mn>
+ <mn>2</mn>
+ <mn>3</mn>
+ </munderover>
+ </mstyle>
+ </math>
+ <math>
+ <mstyle>
+ <munderover>
+ <mn>1</mn>
+ <mn>2</mn>
+ <mn>3</mn>
+ </munderover>
+ </mstyle>
+ <mstyle>
+ <munderover>
+ <mn>1</mn>
+ <mn>2</mn>
+ <mn>3</mn>
+ </munderover>
+ </mstyle>
+ </math>
+ </p>
</body>
</html>
diff --git a/testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-001-ref.html b/testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-001-ref.html
new file mode 100644
index 0000000000..7d99e48c92
--- /dev/null
+++ b/testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-001-ref.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<meta charset="utf-8"/>
+<title>&lt;semantics&gt - mozilla bug 468059 (reference)</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+ math, p {
+ font: 25px Ahem;
+ }
+</style>
+<p>
+ <math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
+ <semantics>
+ <mstyle displaystyle="true">
+ <munderover>
+ <mo movablelimits="true">pXp</mo>
+ <mtext>XpXpXp</mtext>
+ <mtext>XpXpXp</mtext>
+ </munderover>
+ </mstyle>
+ </semantics>
+ </math>
+</p>
diff --git a/testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-001.html b/testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-001.html
new file mode 100644
index 0000000000..63aa9a4da8
--- /dev/null
+++ b/testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-001.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<meta charset="utf-8"/>
+<title>&lt;semantics&gt - mozilla bug 468059</title>
+<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=468059">
+<link rel="help" href="https://w3c.github.io/mathml-core/#semantics-and-presentation">
+<link rel="match" href="semantics-001-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<meta name="assert" content="MathML inside a semantics element inherits displaystyle.">
+<style>
+ math, p {
+ font: 25px Ahem;
+ }
+</style>
+<p>
+ <math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
+ <semantics>
+ <munderover>
+ <mo movablelimits="true">pXp</mo>
+ <mtext>XpXpXp</mtext>
+ <mtext>XpXpXp</mtext>
+ </munderover>
+ </semantics>
+ </math>
+</p>
diff --git a/testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-002-ref.html b/testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-002-ref.html
new file mode 100644
index 0000000000..8abdad93de
--- /dev/null
+++ b/testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-002-ref.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<title>semantics element and legacy rendering rules (reference)</title>
+<meta charset="utf-8"/>
+<p>Empty semantics: <math><mrow></mrow></math></p>
+<p>annotation: <math><mrow><annotation>annotation</annotation></mrow></math></p>
+<p>annotation-xml: <math><mrow><annotation-xml encoding="MathML-Presentation"><mtext>annotation-xml</mtext></annotation-xml></mrow></math></p>
+<p>presentation MathML (no annotations): <math><mrow><mtext>presentation MathML</mtext></mrow></math></p>
+<p>content MathML (no annotations): <math><mrow><csymbol>content MathML</csymbol></mrow></math></p>
+<p>presentation MathML ; annotation: <math><mrow><mtext>presentation MathML</mtext></mrow></math></p>
+<p>presentation MathML ; annotation-xml: <math><mrow><mtext>presentation MathML</mtext></mrow></math></p>
+<p>content MathML ; annotation: <math><mrow><csymbol>content MathML</csymbol></mrow></math></p>
+<p>content MathML ; annotation-xml: <math><mrow><csymbol>content MathML</csymbol></mrow></math></p>
diff --git a/testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-002.html b/testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-002.html
new file mode 100644
index 0000000000..62028fb863
--- /dev/null
+++ b/testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-002.html
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<title>semantics element and legacy rendering rules</title>
+<meta charset="utf-8"/>
+<link rel="help" href="https://developer.mozilla.org/en-US/docs/Web/MathML/Element/semantics">
+<link rel="help" href="https://w3c.github.io/mathml-core/#semantics-and-presentation">
+<link rel="match" href="semantics-002-ref.html">
+<meta name="assert" content="semantics element rendered as an mrow with only the first child displayed and does not rely on legacy rules to choose another child to display instead.">
+<p>Empty semantics: <math><semantics></semantics></math></p>
+<p>annotation: <math><semantics><annotation>annotation</annotation></semantics></math></p>
+<p>annotation-xml: <math><semantics><annotation-xml encoding="MathML-Presentation"><mtext>annotation-xml</mtext></annotation-xml></semantics></math></p>
+<p>presentation MathML (no annotations): <math><semantics><mtext>presentation MathML</mtext></semantics></math></p>
+<p>content MathML (no annotations): <math><semantics><csymbol>content MathML</csymbol></semantics></math></p>
+<p>presentation MathML ; annotation: <math><semantics><mtext>presentation MathML</mtext><annotation>annotation</annotation></semantics></math></p>
+<p>presentation MathML ; annotation-xml: <math><semantics><mtext>presentation MathML</mtext><annotation-xml encoding="application/mathml-presentation+xml"><mtext>annotation-xml</mtext></annotation-xml></semantics></math></p>
+<p>content MathML ; annotation: <math><semantics><csymbol>content MathML</csymbol><annotation>annotation</annotation></semantics></math></p>
+<p>content MathML ; annotation-xml: <math><semantics><csymbol>content MathML</csymbol><annotation-xml encoding="application/mathml-presentation+xml"><mtext>annotation-xml</mtext></annotation-xml></semantics></math></p>
diff --git a/testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-003-ref.html b/testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-003-ref.html
new file mode 100644
index 0000000000..7b6e21a3eb
--- /dev/null
+++ b/testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-003-ref.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<title>semantics element and legacy rendering rules (reference)</title>
+<meta charset="utf-8"/>
+<p>annotation 1: <math><mrow><csymbol>Content MathML</csymbol></mrow></math></p>
+<p>annotation 2: <math><mrow><csymbol>Content MathML</csymbol></mrow></math></p>
+<p>annotation 3: <math><mrow><csymbol>Content MathML</csymbol></mrow></math></p>
+<p>annotation-xml 1: <math><mrow><csymbol>Content MathML</csymbol></mrow></math></p>
+<p>annotation-xml 2: <math><mrow><csymbol>Content MathML</csymbol></mrow></math></p>
+<p>annotation-xml 3: <math><mrow><csymbol>Content MathML</csymbol></mrow></math></p>
+<p>annotation-xml 4: <math><mrow><csymbol>Content MathML</csymbol></mrow></math></p>
+<p>annotation-xml 5: <math><mrow><csymbol>Content MathML</csymbol></mrow></math></p>
+<p>annotation-xml 6: <math><mrow><csymbol>Content MathML</csymbol></mrow></math></p>
+<p>annotation-xml 7: <math><mrow><csymbol>Content MathML</csymbol></mrow></math></p>
diff --git a/testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-003.html b/testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-003.html
new file mode 100644
index 0000000000..83572f4c8c
--- /dev/null
+++ b/testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-003.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<title>semantics element and legacy rendering rules</title>
+<meta charset="utf-8"/>
+<link rel="help" href="https://developer.mozilla.org/en-US/docs/Web/MathML/Element/semantics">
+<link rel="help" href="https://w3c.github.io/mathml-core/#semantics-and-presentation">
+<link rel="match" href="semantics-003-ref.html">
+<meta name="assert" content="semantics element rendered as an mrow with only the first child displayed and does not rely on legacy rules to choose another child to display instead.">
+<p>annotation 1: <math><semantics><csymbol>Content MathML</csymbol><annotation>annotation</annotation><annotation>error</annotation><annotation-xml encoding="application/mathml-presentation+xml"><mtext>error</mtext></annotation-xml></semantics></math></p>
+<p>annotation 2: <math><semantics><csymbol>Content MathML</csymbol><annotation encoding="application/x-tex">\sin x + 5</annotation><annotation>error</annotation><annotation-xml encoding="application/mathml-presentation+xml"><mtext>error</mtext></annotation-xml></semantics></math></p>
+<p>annotation 3: <math><semantics><csymbol>Content MathML</csymbol><annotation src="external-resource">error</annotation><annotation>annotation</annotation><annotation-xml encoding="application/mathml-presentation+xml"><mtext>error</mtext></annotation-xml></semantics></math></p>
+<p>annotation-xml 1: <math><semantics><csymbol>Content MathML</csymbol><annotation-xml encoding="application/mathml-presentation+xml"><mtext>application/mathml-presentation+xml</mtext></annotation-xml><annotation-xml encoding="application/mathml-presentation+xml"><mtext>error</mtext></annotation-xml><annotation>error</annotation></semantics></math></p>
+<p>annotation-xml 2: <math><semantics><csymbol>Content MathML</csymbol><annotation-xml encoding="MathML-Presentation"><mtext>MathML-Presentation</mtext></annotation-xml><annotation-xml encoding="application/mathml-presentation+xml"><mtext>error</mtext></annotation-xml><annotation>error</annotation></semantics></math></p>
+<p>annotation-xml 3: <math><semantics><csymbol>Content MathML</csymbol><annotation-xml encoding="image/svg+xml"><svg xmlns="http://www.w3.org/2000/svg" height="2em"><text y="1em">image/svg+xml</text></svg></annotation-xml><annotation-xml encoding="application/mathml-presentation+xml"><mtext>error</mtext></annotation-xml><annotation>error</annotation></semantics></math></p>
+<p>annotation-xml 4: <math><semantics><csymbol>Content MathML</csymbol><annotation-xml encoding="SVG1.1"><svg xmlns="http://www.w3.org/2000/svg" height="2em"><text y="1em">SVG1.1</text></svg></annotation-xml><annotation-xml encoding="application/mathml-presentation+xml"><mtext>error</mtext></annotation-xml><annotation>error</annotation></semantics></math></p>
+<p>annotation-xml 5: <math><semantics><csymbol>Content MathML</csymbol><annotation-xml encoding="application/xhtml+xml"><html xmlns="http://www.w3.org/1999/xhtml"><head><title>application/xhtml+xml</title></head><body><p>application/xhtml+xml</p></body></html></annotation-xml><annotation-xml encoding="application/mathml-presentation+xml"><mtext>error</mtext></annotation-xml><annotation>error</annotation></math></p>
+<p>annotation-xml 6: <math><semantics><csymbol>Content MathML</csymbol><annotation-xml encoding="text/html"><html><head><title>text/html</title></head><body><p>text/html</p></body></html></annotation-xml><annotation-xml encoding="application/mathml-presentation+xml"><mtext>error</mtext></annotation-xml><annotation>error</annotation></semantics></math></p>
+<p>annotation-xml 7: <math><semantics><csymbol>Content MathML</csymbol><annotation-xml encoding="unknown"><mtext>error</mtext></annotation-xml><annotation-xml encoding="application/mathml-presentation+xml"><mtext>annotation-xml</mtext></annotation-xml><annotation>error</annotation></semantics></math></p>
diff --git a/testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-004-ref.html b/testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-004-ref.html
new file mode 100644
index 0000000000..855d887bbc
--- /dev/null
+++ b/testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-004-ref.html
@@ -0,0 +1,41 @@
+<!DOCTYPE html>
+<meta charset="utf-8"/>
+<title>&lt;semantics&gt - mozilla bug 512418 (reference)</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+ math, p {
+ font: 25px Ahem;
+ }
+</style>
+<p>
+ XpXpXp<math xmlns="http://www.w3.org/1998/Math/MathML">
+ <mrow>
+ <mrow>
+ <mo>lcm</mo>
+ <mo>(</mo>
+ <mn>a</mn>
+ <mo>,</mo>
+ <mn>b</mn>
+ <mo>)</mo>
+ </mrow>
+ <mo>=</mo>
+ <mfrac>
+ <mrow>
+ <mo>(</mo>
+ <mn>a</mn>
+ <mo>&#x2062;</mo>
+ <mn>b</mn>
+ <mo>)</mo>
+ </mrow>
+ <mrow>
+ <mo>gcd</mo>
+ <mo>(</mo>
+ <mn>a</mn>
+ <mo>,</mo>
+ <mn>b</mn>
+ <mo>)</mo>
+ </mrow>
+ </mfrac>
+ </mrow>
+ </math>XpXpXp
+</p>
diff --git a/testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-004.html b/testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-004.html
new file mode 100644
index 0000000000..17f0f1ecd0
--- /dev/null
+++ b/testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-004.html
@@ -0,0 +1,47 @@
+<!DOCTYPE html>
+<meta charset="utf-8"/>
+<title>&lt;semantics&gt - mozilla bug 512418</title>
+<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=512418">
+<link rel="help" href="https://w3c.github.io/mathml-core/#semantics-and-presentation">
+<link rel="match" href="semantics-004-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<meta name="assert" content="The semantics element shouldn't add space around it.">
+<style>
+ math, p {
+ font: 25px Ahem;
+ }
+</style>
+<p>
+ XpXpXp<math xmlns="http://www.w3.org/1998/Math/MathML">
+ <semantics>
+ <mrow>
+ <mrow>
+ <mo>lcm</mo>
+ <mo>(</mo>
+ <mn>a</mn>
+ <mo>,</mo>
+ <mn>b</mn>
+ <mo>)</mo>
+ </mrow>
+ <mo>=</mo>
+ <mfrac>
+ <mrow>
+ <mo>(</mo>
+ <mn>a</mn>
+ <mo>&#x2062;</mo>
+ <mn>b</mn>
+ <mo>)</mo>
+ </mrow>
+ <mrow>
+ <mo>gcd</mo>
+ <mo>(</mo>
+ <mn>a</mn>
+ <mo>,</mo>
+ <mn>b</mn>
+ <mo>)</mo>
+ </mrow>
+ </mfrac>
+ </mrow>
+ </semantics>
+ </math>XpXpXp
+</p>
diff --git a/testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-005-ref.html b/testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-005-ref.html
new file mode 100644
index 0000000000..cf722603e1
--- /dev/null
+++ b/testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-005-ref.html
@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<title>&lt;semantics&gt - mozilla bug 21479 (reference)</title>
+<meta charset="utf-8"/>
+<p>
+ <math xmlns="http://www.w3.org/1998/Math/MathML">
+ <mover>
+ <mspace width="300px" height="10px" mathbackground="black"></mspace>
+ <mo>&#xaf;</mo>
+ </mover>
+ </math>
+</p>
diff --git a/testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-005.html b/testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-005.html
new file mode 100644
index 0000000000..e4fe611c47
--- /dev/null
+++ b/testing/web-platform/tests/mathml/presentation-markup/mrow/semantics-005.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<title>&lt;semantics&gt - mozilla bug 21479</title>
+<meta charset="utf-8"/>
+<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=21479">
+<link rel="help" href="https://w3c.github.io/mathml-core/#semantics-and-presentation">
+<link rel="match" href="semantics-005-ref.html">
+<meta name="assert" content="The embellished operator made of a single mo inside a semantics element is treated the same as the mo alone.">
+<p>
+ <math xmlns="http://www.w3.org/1998/Math/MathML">
+ <mover>
+ <mspace width="300px" height="10px" mathbackground="black"></mspace>
+ <semantics><mo>&#xaf;</mo></semantics>
+ </mover>
+ </math>
+</p>