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css3:border-box将边框，padding计算都计算在宽度内_html/css_WEB-ITnose

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Release： 2016-06-21 08:56:05

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.border-box { -webkit-box-sizing:border-box; -moz-box-sizing:border-box; -ms-box-sizing:border-box; box-sizing:border-box }

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这个class可以让元素的宽度始终等于其width的值，不管padding和border宽度为多少，如：

.input { width: 100%; padding: 0 10px}<input class="input border-box">

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这个input宽度始终都为100%，对应自适应的元素设置padding和border非常好用

这个是css3属性，必须在支持html5浏览器下，一般用在手机端！

box-sizing的默认值是content-box，宽高度等于边框宽度+内边距+内容宽高度

border-box：宽高度等于内容其设置好的width和height值

参考：http://www.w3cplus.com/content/css3-box-sizing

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css3:border-box将边框，padding计算都计算在宽度内

source：php.cn

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