px, em,rem,VW,VH,VM的不同點

原創 Calla_Lj 2020-02-21 03:47

px, em,rem,VW,VH,VM的不同點

  • px: 固定的單位,像素
  • em：繼承父元素的字體大小
  • rem：相對根元素，即html元素字體大小，需設置html的font-size=625%

所以rem=16px*625%=100px

  • VW&VH: viewpoint width&viewpoint height

1VW = 1/100視口寬度 1VH = 1/100視口高度

例如：750*900 1VW=750/100=7.5px 1VH=900/100=9px

  • VM:分爲Vmin和Vmax

Vmin,即是VW和VH較小的一個值

例如：1000*800 則 Vmin=800/100=8px

​ 600*800 則vmin=600/100=6px

Vmax,即是較大的一個值，與Vmin相反

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