lovecoding
/
VIP20


			
				
					
						
						
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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: #000;
      border-radius: 50%;
      /* 
      -webkit-border-radius: 50%  为了兼容Chrome 或者 Safari
      -moz-border-radius: 50%  为了兼容火狐浏览器
      -0-border-radius: 50%  兼容欧朋浏览器
      -ms-border-radius 
      */
    }
  </style>
</head>
<body>
  <div id="div1"></div>
</body>
</html>