absolute position 布局中，可否不通过 JS 做到让子元素在竖直方向上居中呢？ - V2EX
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absolute position 布局中，可否不通过 JS 做到让子元素在竖直方向上居中呢？

  •   
  •   eeeeeeve Jun 24, 2015 4062 views
    This topic created in 3983 days ago, the information mentioned may be changed or developed.
    可以用css解决这个问题么，如何解决？
  • 居中
  • absolute
  • CSS
    3 replies
    lifang
        1
    lifang  
       Jun 24, 2015
    position:absolute;
    top:50%;
    left:50%;
    margin-top: -子元素一半高度;
    margin-left: -子元素一半宽度;


    这样是水平垂直方向都居中了
    eeeeeeve
        2
    eeeeeeve  
    OP
       Jun 24, 2015
    @lifang top:50%没有考虑子元素尺寸啊, 在css中是否可以把子元素的中线和页面中部重合呢?
    top 50% 子元素上部和页面中部重合，不是子元素中部和页面中部重合啊
    ThomasChan
        3
    ThomasChan  
       Jun 25, 2015
    look this:
    https://css-tricks.com/centering-in-the-unknown/
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