css/css-backgrounds/background-attachment-fixed-inside-transform-1.html

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>CSS Background: background-attachment: background-attachment:fixed inside a transform</title>
    <link rel="author" title="Botond Ballo" href="mailto:botond@mozilla.com">
    <link rel="author" title="Mozilla" href="https://www.mozilla.org">
    <link rel="help" href="https://www.w3.org/TR/css-transforms-1/#transform-rendering">
    <link rel="match" href="background-attachment-fixed-inside-transform-1-ref.html">
    <meta name="assert" content="Test checks whether background-attachment: 'fixed' inside a transform behaves like background-attachment: 'scroll'.">
    <style>
      body {
        height: 4000px;
        margin: 0;
      }

      #outer {
        margin: 200px;
        height: 700px;
        width: 300px;
        transform: rotate(45deg);
        overflow: hidden;
      }

      #inner {
        height: 700px;
        background-image: radial-gradient(farthest-corner at center, blue, black);
        background-size: 300px 300px;
        background-position: 200px 200px;
        background-color: lime;
        background-repeat: no-repeat;
        background-attachment: fixed;
      }
    </style>
  </head>
    <body>
      <div id="outer">
        <div id="inner">
        </div>
      </div>
    </body>
</html>