CSS 淡出向下

说明

图像逐渐进入或离开视图，或与另一个镜头融合。

语法

@keyframes fadeOutDown {
   0% {
      opacity: 1;
      transform: translateY(0);
   }
   100% {
      opacity: 0;
      transform: translateY(20px);
   } 
}

参数

transform - 变换对一个元素应用2D和3D变换。
opacity - 不透明度对一个元素应用透明效果。

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 fadeOutDown {
            0% {
               opacity: 1;
               -webkit-transform: translateY(0);
            }
            100% {
               opacity: 0;
               -webkit-transform: translateY(20px);
            }
         }

         @keyframes fadeOutDown {
            0% {
               opacity: 1;
               transform: translateY(0);
            }
            100% {
               opacity: 0;
               transform: translateY(20px);
            }
         }

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

   <body>

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

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

   </body>
</html>