css3.0 图形构成实例练习一

html部分内容

css部分

*{ padding:0; margin:0;}

er{ width:300px; margin:100px auto; position:relative; }

_left,_right{

width:30px;

height:30px;

background:#FFF;

position:absolute;

border:70px solid #0C0;

border-radius:160px;

-moz-border-radius:160px;

-webkit-border-radius:160px;

-o-border-radius:160px;}

_left{

left:10px;

top:0px;}

_right{

right:0px;

top:0px;}

_bottom{

width:200px;

border:#0C0 solid 60px;

border-radius:160px;

-moz-border-radius:160px;

-webkit-border-radius:160px;

-o-border-radius:160px;

height:30px;

left:0px;

position:absolute;

top:120px;

z-index:-5;}

_in{

background:#0C0;

height:30px;

width:30px;

position:absolute;

right:-30px;

top:-30px;

border:#FFF 30px solid;

border-radius:160px;

-moz-border-radius:160px;

-webkit-border-radius:160px;

-o-border-radius:160px;}