css3动画 -渐隐渐现

 

测试

复制代码

<!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>

 

demo2

 

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title></title>
    <style>
        .anim-opacity2{
          width: 100px;
          height: 100px;
          background-color: #FFAC8B;
          border-radius: 50%;
          animation: 2s opacity2 0s infinite; 
          -webkit-animation: 2s opacity2 0s infinite;
          -moz-animation: 2s opacity2 0s infinite;
          position: relative;
        }
        div{
          line-height: 50px;
          width: 50px;
          height: 50px;
          position: absolute;
          top:40px;
          left:30px;
          background-color: #FF6D15;
          border-radius: 50%;
          z-index: 999;
           text-align: center;
        }
        @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"></h1>
    <div>测试</div>

</body>
</html>