[css3动画]渐隐渐现

测试

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title></title>
    <style>
        .anim-opacity2{animation: 2s opacity2 0s infinite; -webkit-animation: 2s opacity2 0s infinite;-moz-animation: 2s opacity2 0s infinite;}
        @keyframes opacity2{
            0%{opacity:0}
            50%{opacity:.8;}
            100%{opacity:0;}
        }
        @-webkit-keyframes opacity2{
            0%{opacity:0}
            50%{opacity:.8;}
            100%{opacity:0;}
        }
        @-moz-keyframes opacity2{
            0%{opacity:0}
            50%{opacity:.8;}
            100%{opacity:0;}
        }
    </style>
</head>
<body>

    <h1 class="anim-opacity2">测试</h1>

</body>
</html>
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原文地址：https://www.cnblogs.com/iloveyou-sky/p/5944858.html