CSS: align center

1. postion & translate(-50%,-50%)
   

    

    

2. position & margin-top: negative, margin-left: negative
   

    

    

3. flex
   

    

4.  position & left rigth bottom left 0 margin: auto
   

    

    

5. table-cell & margin: auto
   

    

    

标签：center,auto,align,50%,negative,position,margin,CSS,left
来源： https://www.cnblogs.com/dissipate/p/15859496.html