css3特效

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8"/>
    <title></title>
    <style type="text/css">
        @-webkit-keyframes flipInX {
            0% { -webkit-transform: perspective(400px) rotateX(90deg); transform: perspective(400px) rotateX(90deg); opacity: 0 }
            40% { -webkit-transform: perspective(400px) rotateX(-10deg); transform: perspective(400px) rotateX(-10deg) }
            70% { -webkit-transform: perspective(400px) rotateX(10deg); transform: perspective(400px) rotateX(10deg) }
            100% { -webkit-transform: perspective(400px) rotateX(0deg); transform: perspective(400px) rotateX(0deg); opacity: 1 }
        }
        @keyframes flipInX {
            0% { -webkit-transform: perspective(400px) rotateX(90deg); -ms-transform: perspective(400px) rotateX(90deg); transform: perspective(400px) rotateX(90deg); opacity: 0 }
            40% { -webkit-transform: perspective(400px) rotateX(-10deg); -ms-transform: perspective(400px) rotateX(-10deg); transform: perspective(400px) rotateX(-10deg) }
            70% { -webkit-transform: perspective(400px) rotateX(10deg); -ms-transform: perspective(400px) rotateX(10deg); transform: perspective(400px) rotateX(10deg) }
            100% { -webkit-transform: perspective(400px) rotateX(0deg); -ms-transform: perspective(400px) rotateX(0deg); transform: perspective(400px) rotateX(0deg); opacity: 1 }
        }
        .flipInX { -webkit-backface-visibility: visible !important; -ms-backface-visibility: visible !important; backface-visibility: visible !important; -webkit-animation-name: flipInX; animation-name: flipInX }
        .animated { -webkit-animation-duration: 1s; animation-duration: 1s; -webkit-animation-fill-mode: both; animation-fill-mode: both }
        .ft {
            height: 78px;
            padding-top: 79px;
            font-weight: 400;
            font-size: 40px;
            text-align: center;
        }
    </style>
</head>
<body>

<div class="ft">
    我是一个好人
</div>
<a class="btn" href="javascript:;">按钮</a>

<script src="jquery-1.10.2.js"></script>
<script type="text/javascript">
    $(".btn").click(function () {
        $(".ft").addClass("animated flipInX");
        setTimeout(function(){
            $(".ft").removeClass("animated flipInX");
        }, 5000);
    });
</script>
</body>
</html>