mask-mode-luminance-with-mask-size-ref.html

<!DOCTYPE html>
<html>
  <head>
    <style type="text/css">
      div {
        position: absolute;

        width: 100px;
        height: 25px;
        left: 10px;

        background-image: url(support/blue-luminance-100x100.svg);
      }

      #top {
        top: 10px;
      }

      #bottom {
        top: 60px;
      }

    </style>
  </head>
  <body>
    <div id="top"></div>
    <div id="bottom"></div>
  </body>
</html>

chromium/third_party/blink/web_tests/external/wpt/css/css-masking/mask-image/mask-mode-luminance-with-mask-size-ref.html