chromium/third_party/blink/web_tests/external/wpt/css/css-transforms/transform-fixed-bg-002.html

<!DOCTYPE html>
<html>
  <head>
    <title>CSS Test (Transforms): Fixed Background (with scrolling)</title>
    <link rel="author" title="Aryeh Gregor" href="mailto:[email protected]">
    <link rel="author" title="L. David Baron" href="https://dbaron.org/">
    <link rel="author" title="Google" href="http://www.google.com/">
    <link rel="help" href="http://www.w3.org/TR/css-transforms-1/#transform-rendering">
    <meta name="assert" content='"Fixed backgrounds on the root element are
    affected by any transform specified for that element. For all other
    elements that are effected by a transform (i.e. have a transform applied
    to them, or to any of their ancestor elements), a value of fixed for the
    background-attachment property is treated as if it had a value of scroll."
    Here we translate the div 150px down instead of 50px, and also scroll down
    100px.  This should be the same as the previous test.'>
    <meta name="flags" content="svg dom">
    <link rel="match" href="transform-fixed-bg-ref.html">
    <style>
      body {
        margin: 0;
        height: 5000px;
        overflow: hidden;
      }
      div {
        background: url(support/transform-triangle-left.svg) fixed;
        width: 100px;
        height: 100px;
        transform: translate(50px, 150px);
      }
    </style>
  </head>
  <body>
    <div></div>
    <script>scroll(0, 100)</script>
  </body>
</html>