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HTML

CSS

CSS Base

Vendor Prefixing

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JavaScript

Babel includes JSX processing.

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Packages

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Behavior

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HTML

              
                <div>在当今天移动设备横行天下的年代,给我们前端人员制作页面带来无尽的烦恼,具体原因,大家都懂的。那么这里我们来模拟一个情形。有一个弹出层,我不知道他的大小有多大,我想让他在各种设备中永远水平居中。在下面示例中,我们用一个Dive来当作是弹出窗吧(偷懒了,不想花太多时间去做这个弹出窗效果)。</div>
              
            
!

CSS

              
                *{
  margin:0;
  padding:0;
  -webkit-box-sizing:border-box;
  box-sizing:border-box;
}

html,
body {
  height:100%;
}

div {
  display:inline-block;
  vertical-align: middle;
  width: 99.5%;
}

body:after {
  content:"";
  display: inline-block;
  vertical-align: middle;
  height: 100%;
  width: 0px;
}
              
            
!

JS

              
                
              
            
!
999px

Console