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
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清除浮动
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.clearfix:after {
content: " ";
display: block;
clear: both;
height: 0;
}
.clearfix {
zoom: 1;
}```