third_party/WebKit/LayoutTests/web-animations-api/animations-responsive-backgroundSize.html

   1 <!DOCTYPE html>
   2 <script src="../resources/testharness.js"></script>
   3 <script src="../resources/testharnessreport.js"></script>
   4
   5 <div id='container'>
   6 <div id='element'></div>
   7 </div>
   8
   9 <script>
  10 var element = document.getElementById('element');
  11 var container = document.getElementById('container');
  12
  13 test(function() {
  14     container.style.fontSize = '50px';
  15     var player = element.animate([{backgroundSize: '300px 30px'}, {backgroundSize: '10em 1em'}], 10);
  16     player.pause();
  17     player.currentTime = 5;
  18     container.style.fontSize = '10px';
  19     assert_equals(getComputedStyle(element).backgroundSize, '200px 20px');
  20 }, 'Border image width responsive to font size changes');
  21
  22 </script>