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+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"
+  "http://www.w3.org/TR/html4/strict.dtd">
+<html lang="en-US">
+<head>
+  <title>Reftest, bug 427129</title>
+  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+  <meta http-equiv="Content-Style-Type" content="text/css">
+  <style type="text/css">
+
+  html, body { margin: 0; }
+
+  .rtl { direction: rtl; }
+
+  .contain {
+    background: aqua; color: black;
+    height: 4px; margin: 1px 50px;
+    padding-top: 0.1px; /* needed for some reason (XXX WHY?) */
+  }
+
+  .fl, .fr { height: 2px; }
+  .fl { float: left; width: 56px; }
+  .fr { float: right; width: 73px; }
+
+  .t { background: blue; height: 1px; width: 100px; border-spacing: 0; }
+  .t caption { background: purple; height: 1px; width: 100px; }
+  .t td { padding: 0; }
+
+  </style>
+</head>
+<body>
+
+<!--
+
+  WARNING: Both this test and the reference are constructed to test
+  our current behavior, which is far from optimal in a number of cases.
+  Fixing the test to test better behavior is encouraged when such
+  behavior is implemented.  In particular:
+   * making the effect of the caption's side margin make sense for 'top'
+     and 'bottom' captions
+   * making 'left' and 'right' captions behave sensibly
+
+  To test the behavior under resizing, every test in this page is
+  repeated three times, once in a container one pixel above the
+  transition width, once at the transition width (just fitting), and
+  once in a container a pixel below the transition width.
+
+-->
+
+<div style="width: 405px">
+  <div class="contain">
+    <div class="fl"></div>
+    <div class="fr"></div>
+    <table class="t" style="margin: 0 15px 0 55px; caption-side: bottom">
+      <caption style="margin: 0 15px 0 60px"></caption>
+      <tr><td></td></tr>
+    </table>
+  </div>
+</div>
+
+<div style="width: 404px">
+  <div class="contain">
+    <div class="fl"></div>
+    <div class="fr"></div>
+    <table class="t" style="margin: 0 15px 0 55px; caption-side: bottom">
+      <caption style="margin: 0 15px 0 60px"></caption>
+      <tr><td></td></tr>
+    </table>
+  </div>
+</div>
+
+<div style="width: 403px">
+  <div class="contain">
+    <div class="fl"></div>
+    <div class="fr"></div>
+    <table class="t" style="margin: 0 15px 0 55px; caption-side: bottom">
+      <caption style="margin: 0 15px 0 60px"></caption>
+      <tr><td></td></tr>
+    </table>
+  </div>
+</div>
+
+<div style="width: 405px">
+  <div class="contain">
+    <div class="fl"></div>
+    <div class="fr"></div>
+    <table class="t" style="margin: 0 15px 0 56px; caption-side: top">
+      <caption style="margin: 0 15px 0 60px"></caption>
+      <tr><td></td></tr>
+    </table>
+  </div>
+</div>
+
+<div style="width: 404px">
+  <div class="contain">
+    <div class="fl"></div>
+    <div class="fr"></div>
+    <table class="t" style="margin: 0 15px 0 56px; caption-side: top">
+      <caption style="margin: 0 15px 0 60px"></caption>
+      <tr><td></td></tr>
+    </table>
+  </div>
+</div>
+
+<div style="width: 403px">
+  <div class="contain">
+    <div class="fl"></div>
+    <div class="fr"></div>
+    <table class="t" style="margin: 0 15px 0 56px; caption-side: top">
+      <caption style="margin: 0 15px 0 60px"></caption>
+      <tr><td></td></tr>
+    </table>
+  </div>
+</div>
+
+<div style="width: 406px">
+  <div class="contain">
+    <div class="fl"></div>
+    <div class="fr"></div>
+    <table class="t" style="margin: 0 15px 0 57px; caption-side: bottom">
+      <caption style="margin: 0 15px 0 60px"></caption>
+      <tr><td></td></tr>
+    </table>
+  </div>
+</div>
+
+<div style="width: 405px">
+  <div class="contain">
+    <div class="fl"></div>
+    <div class="fr"></div>
+    <table class="t" style="margin: 0 15px 0 57px; caption-side: bottom">
+      <caption style="margin: 0 15px 0 60px"></caption>
+      <tr><td></td></tr>
+    </table>
+  </div>
+</div>
+
+<div style="width: 404px">
+  <div class="contain">
+    <div class="fl"></div>
+    <div class="fr"></div>
+    <table class="t" style="margin: 0 15px 0 57px; caption-side: bottom">
+      <caption style="margin: 0 15px 0 60px"></caption>
+      <tr><td></td></tr>
+    </table>
+  </div>
+</div>
+
+<div style="width: 425px">
+  <div class="contain rtl">
+    <div class="fl"></div>
+    <div class="fr"></div>
+    <table class="t" style="margin: 0 72px 0 15px; caption-side: bottom">
+      <caption style="margin: 0 80px 0 15px"></caption>
+      <tr><td></td></tr>
+    </table>
+  </div>
+</div>
+
+<div style="width: 424px">
+  <div class="contain rtl">
+    <div class="fl"></div>
+    <div class="fr"></div>
+    <table class="t" style="margin: 0 72px 0 15px; caption-side: bottom">
+      <caption style="margin: 0 80px 0 15px"></caption>
+      <tr><td></td></tr>
+    </table>
+  </div>
+</div>
+
+<div style="width: 423px">
+  <div class="contain rtl">
+    <div class="fl"></div>
+    <div class="fr"></div>
+    <table class="t" style="margin: 0 72px 0 15px; caption-side: bottom">
+      <caption style="margin: 0 80px 0 15px"></caption>
+      <tr><td></td></tr>
+    </table>
+  </div>
+</div>
+
+<div style="width: 425px">
+  <div class="contain rtl">
+    <div class="fl"></div>
+    <div class="fr"></div>
+    <table class="t" style="margin: 0 73px 0 15px; caption-side: top">
+      <caption style="margin: 0 80px 0 15px"></caption>
+      <tr><td></td></tr>
+    </table>
+  </div>
+</div>
+
+<div style="width: 424px">
+  <div class="contain rtl">
+    <div class="fl"></div>
+    <div class="fr"></div>
+    <table class="t" style="margin: 0 73px 0 15px; caption-side: top">
+      <caption style="margin: 0 80px 0 15px"></caption>
+      <tr><td></td></tr>
+    </table>
+  </div>
+</div>
+
+<div style="width: 423px">
+  <div class="contain rtl">
+    <div class="fl"></div>
+    <div class="fr"></div>
+    <table class="t" style="margin: 0 73px 0 15px; caption-side: top">
+      <caption style="margin: 0 80px 0 15px"></caption>
+      <tr><td></td></tr>
+    </table>
+  </div>
+</div>
+
+<div style="width: 426px">
+  <div class="contain rtl">
+    <div class="fl"></div>
+    <div class="fr"></div>
+    <table class="t" style="margin: 0 74px 0 15px; caption-side: bottom">
+      <caption style="margin: 0 80px 0 15px"></caption>
+      <tr><td></td></tr>
+    </table>
+  </div>
+</div>
+
+<div style="width: 425px">
+  <div class="contain rtl">
+    <div class="fl"></div>
+    <div class="fr"></div>
+    <table class="t" style="margin: 0 74px 0 15px; caption-side: bottom">
+      <caption style="margin: 0 80px 0 15px"></caption>
+      <tr><td></td></tr>
+    </table>
+  </div>
+</div>
+
+<div style="width: 424px">
+  <div class="contain rtl">
+    <div class="fl"></div>
+    <div class="fr"></div>
+    <table class="t" style="margin: 0 74px 0 15px; caption-side: bottom">
+      <caption style="margin: 0 80px 0 15px"></caption>
+      <tr><td></td></tr>
+    </table>
+  </div>
+</div>
+
+</body>
+</html>