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box-sizing #10

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AILINGANGEL opened this issue Jun 4, 2019 · 0 comments

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AILINGANGEL commented Jun 4, 2019

box-sizing有两个值: content-box 和border-box

content-box

一个元素的盒模型的width就是内容的宽度，一个盒子的大小就是由 width + 2 * padding + 2 * border + 2 * margin来决定的

border-box

一个元素的盒模型的width指定的是内容区+padding+border的大小，整个盒子的大小就是width + 2* margin

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