× 目录 [1]float [2]table [3]flex
前面已经介绍过单列定宽单列自适应的两列布局，而两列自适应布局是指一列由内容撑开，另一列撑满剩余宽度的布局方式。本文将从float、table和flex来介绍两列自适应布局的3种思路。
在单列定宽单列自适应的两列布局中，经常用float和负margin配合实现布局效果。但由于margin取值只能是固定值，所以在两列都是自适应的布局中就不再适用。而float和overflow配合可实现两列自适应效果。使用overflow属性来触发bfc，来阻止浮动造成的文字环绕效果。由于设置overflow:hidden并不会触发IE6-浏览器的haslayout属性，所以需要设置zoom:1来兼容IE6-浏览器
<style>p{margin: 0;}.parent{overflow: hidden;zoom: 1;}.left{float: left;margin-right: 20px;} .right{overflow: hidden;zoom: 1;}</style>
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若table元素不设置table-layout:fixed，则宽度由内容撑开。在某个table-cell元素的外层嵌套一层div，并设置足够小的宽度如width:0.1%
<style>p{margin: 0;}.parent{display:table;width:100%;}.leftWrap{display:table-cell;width:0.1%;}.left{margin-right: 20px;} .right{display:table-cell;}</style>
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flex弹性盒模型是非常强大的布局方式。基本上，一般的布局方式都可以实现
[注意]IE9-不支持
<style>p{margin: 0;}.parent{display:flex;} .right{margin-left:20px; flex:1;}</style>
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