news/css3.html at master · javascriptDev/news · GitHub

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<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
    <style>

        .b {
            width: 200px;
            height: 200px;
            background: hotpink;
            color: white;
            font: 15px bold;
            position: relative;
        }

        .b:before {
            pointer-events: none;
            position: absolute;
            content: '';
            height: 100%;
            width: 100%;
            background: red;
            -webkit-transition-duration: 0.3s;
            transition-duration: 0.3s;
            -webkit-transform: skewX(10deg) rotateY(90deg);
            -webkit-transition-property: width transform;
            transition-property: width transform opacity;

        }

        .b:hover:before {
            -webkit-transform: rotateY(0deg);
            background: red;
            opacity: .5;;

        }
    </style>
</head>
<body>
<div class="b">asdasdasdasda</div>
</body>
</html>