Both methods css3 painted semicircle

<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
  <style>
    * {margin: 0; padding: 0;}
    .clearfix{zoom:1;/*为IE6，7的兼容性设置*/}
    .clearfix:after {
      content: '.';
      display: block;
      height: 0;
      clear: both;
      visibility: hidden;
    }
    ul li {
      list-style: none;
      float: left;
      margin: 50px 0 50px 20px;
      text-align: center;
    }
    li {
      background: red;
    }
    h2 {
      margin-top: 20px;
    }
    .circle1 {
      width: 100px;
      height: 50px;
      border-radius: 50px 50px 0 0;
      line-height: 50px;
    }
    .circle2 {
      width: 50px;
      height: 100px;
      border-radius: 0 50px 50px 0;
      line-height: 100px;
    }
    .circle3 {
      width: 100px;
      height: 50px;
      border-radius: 0 0px 50px 50px;
      line-height: 50px;
    }
    .circle4 {
      width: 50px;
      height: 100px;
      border-radius: 50px 0 0 50px; 
      Line-height : 100px ; 
    } 
    .circle5 { 
      width : 100px ; 
      height : 100px ; 
      border-RADIUS : 50px ; 
      Line-height : 100px ; 
    } 
    .demo {  / * left semicircle * / 
      position : Absolute ;  / * Clip property tailoring absolutely positioned elements. In other words, only the position: absolute time is in effect. * / 
      Width : 100px ; 
      height : 100px; 
      Border-RADIUS : 50px ; 
      / * Line-height: 50px; * / 
      Clip : RECT (0px 50px 100px 0px) ;  / * only legitimate shape value is: RECT (Top, right, bottom, left) * / 
    } 
    . right-Circle {  / * right semicircle * / 
      left : 200px ; 
      Clip : RECT (0px 100px 100px 50px) ;  / * only legitimate shape value is: RECT (Top, right, bottom, left) * / 
    } 
  </ style > 
</ head > 
< body > 
  <div > 
    < H2 > implemented semicircle with border-RADIUS </ H2 > 
    < UL class = "clearfix" > 
      < Li class = "CIRCLE1" > upper circle </ Li > 
      < Li class = "CIRCLE2" > left circular </ Li > 
      < Li class = "circle3 do" > lower circle </ Li > 
      < Li class = "circle4" > left circular </ > <
      class = "circle5" > full circle </ Li > 
    </ UL > 
    < HR > 
    < H2 > CSS3 the clip method of tailoring to achieve a semicircular </ H2 > 
    < P style = "Color: Red;" > clip property tailoring absolute positioning element . In other words, only the position: absolute time is in effect. Shape is the only legal value: RECT (Top, right, bottom, left) </ P > 
    < UL class = "clearfix" style = "position: relative;" > 
      < Li class = "Demo" > left semicircle <
      li class="demo right-circle">右半圆</li>
      <li></li>
    </ul>
  </div>
</body>
</html>
Renderings:
Interested friends can go try it cooked! ! !
Both methods css3 painted semicircle

Guess you like
