break-overflowed-block-dynamic-001.html (1389B)
1 <!DOCTYPE html> 2 <!-- Any copyright is dedicated to the Public Domain. 3 http://creativecommons.org/publicdomain/zero/1.0/ --> 4 <html> 5 <meta charset="utf-8"> 6 <title>Test for dynamic re-pagination of a overflowed block element</title> 7 <link rel="author" title="Ting-Yu Lin" href="mailto:tlin@mozilla.com"> 8 <link rel="author" title="Mozilla" href="http://www.mozilla.org/"> 9 <link rel="help" href="https://drafts.csswg.org/css-break/#possible-breaks"> 10 <link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1559961"> 11 <link rel="match" href="../reference/ref-filled-green-100px-square.xht"> 12 13 <style> 14 #multicol { 15 columns: 2; 16 column-fill: auto; 17 column-gap: 0; 18 height: 400px; /* Must be large enough so that .target doesn't break initially. */ 19 width: 100px; 20 background: red; 21 } 22 #block { 23 height: 25px; 24 } 25 #target { 26 background: green; 27 width: 50px; 28 height: 200px; /* Expected to be broken into 2 columns after runTest() */ 29 } 30 </style> 31 32 <script> 33 function runTest() { 34 document.body.offsetHeight; 35 document.getElementById("multicol").style.height = "100px"; 36 } 37 </script> 38 39 <body onload="runTest()"> 40 <p>Test passes if there is a filled green square and <strong>no red</strong>.</p> 41 <div id="multicol"> 42 <div id="block"> 43 <div id="target"></div> 44 </div> 45 </div> 46 </body> 47 </html>