1-1-3.css易混淆的样式

css3 box-sizing属性

box-sizing属性可以为三个值之一:content-box(default),border-box,padding-box。

content-box,border和padding不计算入width之内

padding-box,padding计算入width内

border-box,border和padding计算入width之内,其实就是怪异模式

<style type="text/css">
.content-box{
    box-sizing:content-box;
    -moz-box-sizing:content-box;
    width: 100px;
    height: 100px;
    padding: 20px;
    border: 5px solid #E6A43F;
    background: blue;
}
.padding-box{
    box-sizing:padding-box;
    -moz-box-sizing:padding-box;
    width: 100px;
    height: 100px;
    padding: 20px;
    border: 5px solid #186645;
    background: red;                
}
.border-box{
    box-sizing:border-box;
    -moz-box-sizing:border-box;
    width: 100px;
    height: 100px;
    padding: 20px;
    border: 5px solid #3DA3EF;
    background: yellow;
}
</style>

测试图片

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