css border实现的三角形图案
利用css控制border的边框属性, 可以画出三角形,下面一步一步演示给大家看:
先看下面代码代码如下:
<code class="html"><style> div{ width:200px; height:200px; border-top:50px solid yellow; border-right:50px solid red; border-bottom:50px solid purple; border-left:50px solid blue; } </style> <div></div></code>
效果如下图:
如果我们将idth和height设为0,又会是什么样的呢:
<code class="html"><style> div{ width:0px; height:0px; border-top:50px solid yellow; border-right:50px solid red; border-bottom:50px solid purple; border-left:50px solid blue; } </style> <div></div></code>
效果图如下:
从图中可以看出,我们已经有了四个的三角形,如果只需要一个三角形,该怎么实现呢?很简单,只需要将其他三个边框的颜色设为透明transparent即可。
代码如下:
<code class="html"><style> div{ width:0px; height:0px; border-top:50px solid transparent; border-right:50px solid transparent; border-bottom:50px solid transparent; border-left:50px solid blue; } </style> <div></div></code>
效果图:
好了,效果达成了,大家现在应该知道怎么实现了吧,其实很容易。

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