testing/web-platform/tests/css/css-transforms/transform-transformed-thead-contains-fixed-position.html


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<!DOCTYPE html>
<html>
  <head>
    <title>CSS Test (Transforms): Transformed thead contains fixed position elements.</title>
    <link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
    <link rel="help" href="http://www.w3.org/TR/css-transforms-1/#transform-rendering">
    <meta name="assert" content='This test ensures that transformed thead element is a containing block for fixed position elements.'>
    <link rel="match" href="transform-transformed-thead-contains-fixed-position-ref.html">
    <style>
      table, thead, tr, td {
        margin: 0;
        padding: 0;
        border-spacing: 0;
      }
      .pad {
        height: 50px;
      }
      .container {
        transform: translateX(20px) rotate(45deg);
        transform-origin: left;
      }
      .fixed {
        position: fixed;
        top: 15px;
        left: 10px;
        background-color: lightblue;
      }
    </style>
  </head>
  <body>
    <div class='pad'></div>
    <table>
      <thead class='container'>
        <tr>
          <td>some text<div class='fixed'>fixed</div>
          </td>
        </tr>
      </thead>
    </table>
  </body>
</html>