html { /*-webkit-box-sizing: border-box; -moz-box-sizing: border-box;*/ box-sizing: border-box; } *, *:before, *:after { /*-webkit-box-sizing: inherit; -moz-box-sizing: inherit;*/ box-sizing: inherit; }
所有元素使用border-box, 并且允许元素修改其box-sizing
出处:https://css-tricks.com/inheriting-box-sizing-probably-slightly-better-best-practice/
原文：http://www.cnblogs.com/mengff/p/6541366.html