layout/reftests/bugs/1018522-1.html

   1 <!DOCTYPE html>
   2 <html class="reftest-wait">
   3 <title>Test that opacity changes on layers make the Compositor repaint the right area</title>
   4
   5 <style>
   6
   7 #box {
   8   width: 100px;
   9   height: 100px;
  10   border: 10px solid black;
  11   opacity: 1;
  12   will-change: opacity;
  13 }
  14
  15 #box.halfTransparent {
  16   opacity: 0.5;
  17 }
  18
  19 </style>
  20
  21 <div id="box"></div>
  22
  23 <script>
  24
  25 window.addEventListener("MozReftestInvalidate", function (e) {
  26   document.getElementById("box").className = "halfTransparent";
  27   document.documentElement.removeAttribute("class");
  28 });
  29
  30 </script>