css - div 自适应高度 自动填充剩余高度

问题描述

固定的盒子需要绝对定位才能实现以下效果，希望有不需要绝对定位实现以下方法的大神！求指点

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问题解答

问题有点模糊，如果是要求A+B等于outer的高度，可以用calc(100% - 100px);

浮动 固定定位

你的问的不太明白啊，能说的具体点吗？