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diff --git a/layout/base/crashtests/310638-2.html b/layout/base/crashtests/310638-2.html
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+++ b/layout/base/crashtests/310638-2.html
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+<HTML>
+<HEAD>
+
+</HEAD>
+<BODY onload="document.getElementById('s').removeAttribute('style');">
+<span>
+  <span style="display: block;" id="s">This should not crash Mozilla</span>
+</span>
+<div style=" position: absolute;">
+  <span style="position: relative;">
+    <span style="white-space:pre;">
+      <span style="position: absolute;">
+        <span style="float: right;"></span>
+      </span>
+    </span>
+  </span>
+</div>
+</BODY>
+</HTML>