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HomeWeb Front-endHTML Tutorial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

  1. 明确外边距可以应用到行内元素
  2. 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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