chromium/third_party/blink/web_tests/transitions/text-indent-transition.html

<!DOCTYPE>
<html>
<head>
  <style>
    .box {
      width: 400px;
      height: 100px;
      margin: 10px;
      border: 1px solid blue;
      transition-property: text-indent;
      transition-duration: 1s;
      transition-timing-function: linear;
    }
    
    .indent {
      text-indent: 0;
    }

    #container.final .indent {
      text-indent: 100px;
    }

  </style>
  <script src="../animations/resources/animation-test-helpers.js"></script>
  <script type="text/javascript">

    const expectedValues = [
      // [time, element-id, property, expected-value, tolerance]
      [0.5, 'box1', 'text-indent', 50, 2],
    ];
  
    function setupTest()
    {
      document.getElementById('container').className = 'final';
    }
  
    runTransitionTest(expectedValues, setupTest);
  </script>
</head>
<body>
  
  <div id="container">
    <div id="box1" class='indent box'>Text is affected by transition of text-indent.</div>
  </div>

  <div id="result"></div>
</body>
</html>