CSS 淡入效果

描述

图像逐渐进入或离开视野，或者融入另一个镜头。

语法

@keyframes fadeIn {
   0% {opacity: 0;}
   100% {opacity: 1;}
}

参数

Transform −变换应用于2D和3D转换到一个元素。
Opacity −不透明度应用于元素以使其半透明。

示例

<html>
   <head>
      <style>
         .animated {
            background-image: url(https://geek-docs.com/static/logo.png);
            background-repeat: no-repeat;
            background-position: left top;
            padding-top:95px;
            margin-bottom:60px;
            -webkit-animation-duration: 10s;
            animation-duration: 10s;
            -webkit-animation-fill-mode: both;
            animation-fill-mode: both;
         }

         @-webkit-keyframes fadeIn {
            0% {opacity: 0;}
            100% {opacity: 1;}
         }

         @keyframes fadeIn {
            0% {opacity: 0;}
            100% {opacity: 1;}
         }

         .fadeIn {
            -webkit-animation-name: fadeIn;
            animation-name: fadeIn;
         }
      </style>
   </head>

   <body>

      <div id = "animated-example" class = "animated fadeIn"></div>
      <button onclick = "myFunction()">Reload page</button>

      <script>
         function myFunction() {
            location.reload();
         }
      </script>

   </body>
</html>