<!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;
        }
        
        .mover {
            animation: move 0.25s linear;
        }
        
        body.changed .mover {
            animation-duration: 0.2s;
        }

        .slider {
            animation: slide 0.25s linear;
        }
        
        body.changed .slider {
            animation-duration: 0.2s;
        }

        @keyframes move {
            from { left: 100px; }
            to   { left: 400px; }
        }

        @keyframes slide {
            from { transform: translateX(100px); }
            to   { transform: translateX(400px); }
        }
    </style>
    <script>
        if (window.testRunner)
            testRunner.waitUntilDone();

        function doTest()
        {
            var box = document.getElementById('box1');
            box.addEventListener('animationend', function() {
                window.setTimeout(function() {
                    document.body.classList.add('changed');
                    window.setTimeout(function() {
                        if (window.testRunner)
                            testRunner.notifyDone();
                    }, 10);
                }, 0);
            }, false);
            
            box.classList.add('mover');
            document.getElementById('box2').classList.add('slider');
        }
        
        window.addEventListener('load', doTest, false);
    </script>
</head>
<body>
    <div class="container">
        <div id="box1" class="box"></div>
    </div>
    <div class="container">
        <div id="box2" class="box"></div>
    </div>
</body>
</html>