lovecoding
/
VIP22


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    #div1{
      width: 200px;
      height: 200px;
      background: red;
      animation: run 5s linear 1s 2 ;
    }
    /* 定义动画 */
    @keyframes run{
      10%{
        width: 800px;
      }
      50%{
        width: 100px;
      }
      100%{
        width: 300px;
      }
    }
  </style>
</head>
<body>
  <div id="div1"></div>
</body>
</html>