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+<!DOCTYPE html>
+<!-- Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/ -->
+<html>
+ <meta charset="utf-8">
+ <title>Test for dynamic re-pagination of a overflowed block element</title>
+ <link rel="author" title="Ting-Yu Lin" href="mailto:tlin@mozilla.com">
+ <link rel="author" title="Mozilla" href="http://www.mozilla.org/">
+ <link rel="help" href="https://drafts.csswg.org/css-break/#possible-breaks">
+ <link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1559961">
+ <link rel="match" href="../reference/ref-filled-green-100px-square.xht">
+
+ <style>
+ #multicol {
+ columns: 2;
+ column-fill: auto;
+ column-gap: 0;
+ height: 400px; /* Must be large enough so that .target doesn't break initially. */
+ width: 100px;
+ background: red;
+ }
+ #block {
+ height: 25px;
+ }
+ #target {
+ background: green;
+ width: 50px;
+ height: 200px; /* Expected to be broken into 2 columns after runTest() */
+ }
+ </style>
+
+ <script>
+ function runTest() {
+ document.body.offsetHeight;
+ document.getElementById("multicol").style.height = "100px";
+ }
+ </script>
+
+ <body onload="runTest()">
+ <p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+ <div id="multicol">
+ <div id="block">
+ <div id="target"></div>
+ </div>
+ </div>
+ </body>
+</html>