讨论内外边距对行内元素是否起作用，则要对行内替换元素和行内非替换元素分别讨论：_html/css

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讨论内外边距对行内元素是否起作用，则要对行内替换元素和行内非替换元素分别讨论：_html/css_WEB-ITnose

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Jun 24, 2016 am 11:35 AM

明确外边距可以应用到行内元素
向一个内联非替换元素应用外边距，对行高(line-height)没有任何影响
1. 向一个内联非替换元素应用内边距上下边距时，对行高(line-height)没有任何影响，但当应用左右边距时，会对显示效果有影响，因此可以设置padding-left/right,margin-left/right

#two{

width:100px;

margin-right:50px;

padding-left:50px;

}

1111

2222

3333

4.当一个内联非替换元素应用外边距，由于其外边距是透明而行高无影响，所以不显示视觉效果，但当上色时，由于内边距是非透明的，因此可以显示出效果

#two{

margin-top:50px;

padding-bottom: 50px;

}

1111

上下对行高均无影响，但padding可显色

除去行高区域外均不占文本流空间

效果:

5.对于一个内联替换元素而言，为其设置的内外边距等实际上是为其替换元素所设置的，会影响到替换元素的尺寸边距，从而影响到行高，因此可以设置margin和padding

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