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起因是在网上看到了有人用纯css画出了英文字母，感觉不难，了解过css3的话都会感觉思路比较直观
主要用到的css知识点：绝对定位，圆角属性以及元素的宽高均为零时边框的挤压性质
效果图
源代码
<!DOCTYPE html> <html> <head> <title>CSS-Letter</title> <meta charset="utf-8"/> <style type="text/css"> *{ margin:0px; padding:0px; } .letter{ position:relative; width:80px; height:100px; float:left; margin-left:20px; } .A-widget-one{ width:0px; height:0px; border-bottom:100px solid #000; border-left:40px solid transparent; border-right:40px solid transparent; position:absolute; left:0px; top:0px; } .A-widget-two{ width:0px; height:0px; border-bottom:63px solid #FFF; border-left:25px solid transparent; border-right:25px solid transparent; position:absolute; left:15px; bottom:0px; } .A-widget-three{ width:32px; height:15px; background-color:#000; position:absolute; left:24px; top:62px; } .B-widget-one{ width:15px; height:100px; background-color:#000; position:absolute; left:5px; top:0px; } .B-widget-two,.B-widget-three{ width:60px; height:50px; background-color:#000; border-top-right-radius:45%; border-bottom-right-radius:45%; position:absolute; left:20px; top:0px; } .B-widget-three{ top:50px; } .B-widget-four,.B-widget-five{ width:40px; height:20px; background-color:#FFF; border-top-right-radius:45%; border-bottom-right-radius:45%; position:absolute; left:20px; top:15px; } .B-widget-five{ top:65px; } .C-widget-one{ width:80px; height:100px; background-color:#000; border-radius:45%; } .C-widget-two{ width:40px; height:60px; background-color:#FFF; border-radius:45%; position:absolute; left:20px; top:20px; } .C-widget-three{ width:22px; height:30px; background-color:#FFF; position:absolute; right:0px; top:35px; } </style> </head> <body> <div class="letter"> <div class="A-widget-one"></div> <div class="A-widget-two"></div> <div class="A-widget-three"></div> </div> <div class="letter"> <div class="B-widget-one"></div> <div class="B-widget-two"></div> <div class="B-widget-three"></div> <div class="B-widget-four"></div> <div class="B-widget-five"></div> </div> <div class="letter"> <div class="C-widget-one"></div> <div class="C-widget-two"></div> <div class="C-widget-three"></div> </div> </body> </html>
利用css的圆角属性和绝对定位可以做很多有意思的东西，例如下面就是一个用css画出来的太极图
代码
<!DOCTYPE html> <html> <head> <title>css-taichi</title> <meta charset="utf-8"/> <style type="text/css"> *{ margin:0; padding:0; } .wrapper{ width:300px; height:300px; margin:20px auto; border:1px solid #CDCDCD; position:relative; } .wrapper-circle{ width:200px; height:200px; border-radius:50%; position:absolute; left:50px; top:50px; animation-name:rotary-taichi; animation-duration:3s; animation-iteration-count:infinite; animation-direction:alterlate; } .circle{ width:100px; height:200px; position:absolute; } .left-circle{ left:0; top:0; border-radius:200px 0 0 200px; background-color:#EBEBEB; } .right-circle{ right:0; top:0; border-radius:0 200px 200px 0; background-color:#000; } .minor-circle{ width:100px; height:100px; border-radius:50%; position:absolute; z-index:10; } .top-circle{ right:-50px; top:0; background-color:#EBEBEB; } .bottom-circle{ right:-50px; bottom:0; background-color:#000; } .tiny-circle{ width:30px; height:30px; border-radius:50%; position:absolute; left:35px; top:35px; z-index:20; } .top-circle .tiny-circle{ background-color:#000; } .bottom-circle .tiny-circle{ background-color:#EBEBEB; } @keyframes rotary-taichi{ transform-origin:50% 50%; from {transform:rotate(0deg);} to {transform:rotate(360deg);} } </style> </head> <body> <div class="wrapper"> <div class="wrapper-circle"> <div class="left-circle circle"> <div class="top-circle minor-circle"> <div class="tiny-circle"></div> </div> <div class="bottom-circle minor-circle"> <div class="tiny-circle"></div> </div> </div> <div class="right-circle circle"> </div> </div> </div> </body> </html>
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原文地址：http://www.cnblogs.com/ckzhou/p/4483467.html
