meta [设置全屏]

一、meta [设置全屏]

<meta name="viewport" content="width=device-width, initial-scale=1.0,viewport-fit=cover"

viewport-fit 的值有 默认值-auto/contain，全屏值-cover

constant() 以及 safe-area-inset-top safe-area-inset-right safe-area-inset-bottom safe-area-inset-left 是 iOS 11 webview 新增加的特性，专门用于应对刘海

   body {

        padding: constant(

safe-area-inset-top

) 

constant( safe-area-inset-right ) 

constant( safe-area-inset-bottom) 

constant( safe-area-inset-left)

}

//默认值

safe-area-inset-top=0， 

safe-area-inset-right=44px ，

safe-area-inset-bottom=21px，

safe-area-inset-left=44px

原文链接：https://www.jianshu.com/p/69be9c78397d