我是用下面代码实现的：
border-bottom-color: green; width: 20px"/>
问题来了：不点击text的时候，没有边框，就一个下划线， 但是在输入的时候（即点击一下该区域），text的边框又出来了。
我想问一下有没有方法将text 输入的时候的边框也去除啊，谢谢。、
补充：该问题只在chrome浏览器中会有。
回复讨论(解决方案)
自己找到方法了：如果有需要的可以看一下：
只需要再设置一个属性就可以了： outline: none;
解决就好
嗯 对的
outline:none;可以去掉边框
另外不止chrome会有 其它浏览器比如safari也有
连IE也会有 只是颜色比较浅而已:P
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