LayoutTests/animations/change-completed-animation-transform-expected.html

<!DOCTYPE html>
<html>
<head>
    <style>
        .container {
            height: 100px;
            width: 500px;
            margin: 4px;
            border: 1px solid black;
        }
        .box {
            position: relative;
            width: 100px;
            height: 100px;
            background-color: green;
        }
    </style>
</head>
<body>
    <div class="container">
        <div id="box" class="mover box"></div>
    </div>
    <div class="container">
        <div id="box" class="slider box"></div>
    </div>
</body>
</html>