<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>CSS Transforms Test: rotateY with transform-style on nested elements</title>
    <link rel="author" title="Intel" href="http://www.intel.com">
    <link rel="help" href="http://www.w3.org/TR/css-transforms-1/#transform-style-property">
    <link rel="help" href="http://www.w3.org/TR/css-transforms-1/#three-d-transform-functions">
    <link rel="match" href="reference/css-transform-3d-transform-style-ref.html">
    <meta name="assert" content="Test checks that rotate the nested div with transform-style preserve-3d, rotated parent div for -60 degree on Y-axis then and rotated child div for 120 degree, at this time the parent and child should have equal width, then child div could cover the red box.">
    <style>
      div {
        position: absolute;
      }
      div.container {
        height: 100px;
        top: 60px;
        width: 400px;
      }
      div.blue {
        background-color: blue;
        height: 100px;
        transform: rotateY(-60deg);
        transform-style: preserve-3d;
        width: 400px;
      }
      div.green {
        background-color: green;
        height: 100px;
        transform: rotateY(120deg);
        width: 400px;
      }
      div.red{
        background-color: red;
        height: 100px;
        left: 100px;
        width: 200px;
      }
    </style>
  </head>
  <body>
    <p>Test passes if there is a <b>green</b> square and a <b>blue</b> square, and no any <b>red</b>.</p>
    <div class="container">
      <div class="red"></div>
      <div class="blue">
        <div class="green"></div>
      </div>
    </div>
  </body>
</html>