css常用代码片段

内容过长时，采用省略号

.my-ellipsis{
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap
}

清除浮动

.clearfix:before, .clearfix:after {
    content: "";
    display: table;
}
.clearfix:after {
    clear: both;
}
.clearfix {
    *zoom: 1; /*IE/7/6*/
}