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+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Test MathML columnalign</title>
+  </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>