CSS Bounce In Down弹跳动画效果

描述

弹跳动画效果用于在撞击表面后，将元素快速向上、回退或离开表面移动。

语法

@keyframes bounceInDown {
   0% {
      opacity: 0;
      transform: translateY(-2000px);
   }
   60% {
      opacity: 1;
      transform: translateY(30px);
   }
   80% {
      transform: translateY(-10px);
   }
   100% {
      transform: translateY(0);
   }
}

参数

Transform − 变换应用于元素的2D和3D变换。
Opacity − 不透明度应用于元素以实现半透明效果。

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 bounceInDown {
            0% {
               opacity: 0;
               -webkit-transform: translateY(-2000px);
            }
            60% {
               opacity: 1;
               -webkit-transform: translateY(30px);
            }
            80% {
               -webkit-transform: translateY(-10px);
            }
            100% { 
               -webkit-transform: translateY(0);
            }
         }

         @keyframes bounceInDown {
            0% {
               opacity: 0;
               transform: translateY(-2000px);
            }
            60% {
               opacity: 1;
               transform: translateY(30px);
            }
            80% {
               transform: translateY(-10px);
            }
            100% {
               transform: translateY(0);
            }
         }

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

   <body>

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

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

   </body>
</html>