如何利用CSS实现三角形效果:
建议:尽可能的手写代码，可以有效的提高学习效率和深度。
有时候我们经常发现有些矩形的某个地方会出现三角形效果，感觉挺神奇的，当然可以使用背景图片实现，这里简单介绍一下不采用背景图片的效果。代码如下:
<!DOCTYPE html><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><meta name="author" content="http://www.softwhy.com/" /><title>蚂蚁部落</title><style type="text/css">.parent{ width:300px; height:100px; margin:40px auto; background-color:green; position:relative;}.square{ width:0px; height:0px; border-bottom:10px solid white; border-left:10px solid white; border-right:10px solid green; border-top:10px solid green; position:absolute; left:-20px; top:10px;}</style></head><body><div class="parent"> <div class="square"></div></div></body></html> 原理很简单，可能上面的代码还不够明显，那么请看下面这个代码实例就一目了然了。
<!DOCTYPE html><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><meta name="author" content="http://www.softwhy.com/" /><title>蚂蚁部落</title><style type="text/css">div{ width:0px; height:0px; border-bottom:10px solid green; border-left:10px solid blue; border-right:10px solid red; border-top:10px solid black;}</style></head><body><div></div></body></html> 原文地址是:http://www.softwhy.com/forum.php?mod=viewthread&tid=4650
更多内容可以参阅:http://www.softwhy.com/divcss/
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