css实现position:relative父元素高度随子元素position:absolute不定高度自适应

.parent{ 
	position: relative;
	*zoom: 1;/* hack for IE6/7 */
}
.parent:before, .parent:after{
	content: "";
	display: table;
 }

可以畅写position:absolute的子元素了
参考百度网站8楼:https://ruby-china.org/topics/8646

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转载自blog.csdn.net/qq_37291064/article/details/94732833