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Mercurial (409f3966645a)

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<!DOCTYPE html>
<html class="reftest-wait">
  <head>
    <meta charset="utf-8">
    <title>CSS Masking: mask invalidation.</title>
    <style type="text/css">
      div.outer {
        background-color: purple;
        position: absolute;
        margin: 1px 2px 3px 4px;
        border: solid purple;
        width: 40px;
        height: 20px;
      }

      div.inner {
        width: 10px;
        height: 10px;
        border: 1px solid transparent;
        will-change: transform;
      }

      div.mask {
        mask-size: 100% 100%;
        mask-origin: border-box;
        mask-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg"><rect x="0" y="0"  width="100%" height="50%" fill="blue" fill-opacity="1"/><rect x="0" y="50%" width="100%" height="50%" fill="blue" fill-opacity="0"/></svg>');
      }

      #d1 {
        top: 10px;
        left: 10px;
        mask-clip: padding-box;
        border-width: 10px;
        padding: 0px;
      }

      #d2 {
        top: 10px;
        left: 110px;
        mask-clip: padding-box;
        border-width: 0px;
        padding: 10px;
      }

      #d3 {
        top: 15px;
        left: 215px;
        mask-clip: content-box;
        border-width: 10px;
        padding: 0px;
      }
    </style>
  </head>
  <body>
    <div id="d1" class="outer mask"><div class="inner"></div></div>
    <div id="d2" class="outer mask"><div class="inner"></div></div>
    <div id="d3" class="outer mask"><div class="inner"></div></div>
    <script type="text/javascript">
      function invalidateMaskedElements()
      {
        // Shrink border area, thicken padding area. Keep ths size of this
        // division unchanged.
        document.getElementById("d1").style.borderWidth = "5px";
        document.getElementById("d1").style.padding = "5px";

        // Shrink padding area, thicken border area. Keep ths size of this
        // division unchanged.
        document.getElementById("d2").style.borderWidth = "5px";
        document.getElementById("d2").style.padding = "5px";

        // Shrink border area, thicken content area. Keep ths size of this
        // division unchanged.
        document.getElementById("d3").style.width = "50px";
        document.getElementById("d3").style.height = "30px";
        document.getElementById("d3").style.borderWidth = "0px";

        document.documentElement.removeAttribute("class");
      }

      document.addEventListener("MozReftestInvalidate",
                                invalidateMaskedElements);
    </script>
  </body>
</html>