chromium/third_party/blink/web_tests/external/wpt/css/css-masking/mask-image/mask-clip-8-ref.html

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <style type="text/css">
      div.outer {
        /*
         * content box: 40 x 20
         * padding box: 52 x 38
         * border  box: 60 x 50
         * margin  box: 66 x 54
         */
        background-color: purple;
        position: absolute;
        top: 10px;
        margin: 1px 2px 3px 4px;
        border: solid transparent;
        border-width: 8px 2px 4px 6px;
        padding: 6px 9px 12px 3px;
        width: 40px;
        height: 20px;
        mask-size: 100% 100%;
        mask-image: url(support/transparent-100x50-blue-100x50.svg);
      }

      div.first {
        left: 10px;
        mask-origin: border-box;
      }

      div.second {
        left: 110px;
        mask-origin: border-box;
      }

      div.third {
        left: 210px;
        mask-origin: content-box;
      }

    </style>
  </head>
  <body>
    <div class="outer mask first"></div>
    <div class="outer mask second"></div>
    <div class="outer mask third"></div>
  </body>
</html>