CSS Animations

Creating Simple Animations CSS allows you to animate HTML elements using @keyframes. 

<!DOCTYPE html>
<html>
<head>
    <style>
        @keyframes move {
            0% { left: 0px; }
            100% { left: 100px; }
        }
        .animated-box {
            position: relative;
            width: 50px;
            height: 50px;
            background-color: red;
            animation: move 2s infinite alternate;
        }
    </style>
</head>
<body>
    <div class="animated-box"></div>
</body>
</html>