console 命令行工具 X clear

console

<body>
  <div id="div1">
 CSS3:圆角边框
  </div>
  
</body>

#div1{
  border:4px dotted #ff0000;
  width:150px;
  height:80px;
  border-radius:40px;
  text-align:center;
  background-color:green;
  box-shadow: 10px  10px 5px #888888;
}