CSS 摇摆效果

描述

它提供了使元素在悬挂或轴上来回摇摆或来回移动的动作。

语法

@keyframes swing { 
   20% { transform: rotate(15deg); } 
   40% { transform: rotate(-10deg); } 
   60% { transform: rotate(5deg); } 
   80% { transform: rotate(-5deg); } 
   100% { transform: rotate(0deg); } 
}

参数

Transform − Transform将2D和3D变换应用于元素。
Opacity − Opacity将元素应用于使其半透明。

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 swing { 
            20%, 40%, 60%, 80%, 100% { -webkit-transform-origin: top center; } 
            20% { -webkit-transform: rotate(15deg); } 
            40% { -webkit-transform: rotate(-10deg); } 
            60% { -webkit-transform: rotate(5deg); } 
            80% { -webkit-transform: rotate(-5deg); } 
            100% { -webkit-transform: rotate(0deg); } 
         }

         @keyframes swing { 
            20% { transform: rotate(15deg); } 
            40% { transform: rotate(-10deg); } 
            60% { transform: rotate(5deg); } 
            80% { transform: rotate(-5deg); } 
            100% { transform: rotate(0deg); } 
         }

         .swing { 
            -webkit-transform-origin: top center; 
            transform-origin: top center; 
            -webkit-animation-name: swing; 
            animation-name: swing; 
         }
      </style>
   </head>

   <body>

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

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

   </body>
</html>

将会产生以下结果：