文本溢出 。。。啥的css样式
//公共属性，设置width就行了
.overflow{
overflow: hidden;
white-space: nowrap;
text-overflow: ellipsis;
}```
<a href="javascript:void(0)">跳转</a>这样可以阻止
------------------------------------------------------------------------
清除浮动
---------------------------------------------------------
.clearfix:after {
content: " ";
display: block;
clear: both;
height: 0;
}
.clearfix {
zoom: 1;
}```
