<!DOCTYPE html>
<html>
<head>
  <style>
    #box1 {
      position: relative;
      left: 10px;
      top: 10px;
      height: 100px;
      width: 100px;
      background-color: blue;
      animation: anim1 0 2s linear forwards;
    }
    @keyframes anim1 {
        from { left: 400px; }
        25%  { left: 0px; }
        51%  { left: 250px; }
        to   { left: 100px; }
    }
  </style>
  <script src="resources/animation-test-helpers.js"></script>
  <script>

    const expectedValues = [
      // [animation-name, time, element-id, property, expected-value, tolerance]
      ["anim1", 1, "box1", "left", 100, 2],
    ];

    runAnimationTest(expectedValues);
  </script>
</head>
<body>
<p>Fill-forwards state should be the last keyframe state, even with a zero-duration animation.</p>
<div id="box1"></div>
<div id="result"></div>
</body>
</html>