直接上代码，具体原理自己搜索网上一大堆

    
         
         
         
             
     
      Blog
      Photos
      Projects
     
     
    
      
Welcome
    
      
two hours ago
    
      
Hi!
    
      
Welcome to my sample blog!
    
      
This post is here to help demonstrate how easy it is to take an existing site, along with full-width bars and fixed-position elements, and make it take full advantage of iPhone X's edge-to-edge display.
    
      
The actual post describing how to adopt the new API is over on the WebKit blog.
    
      
There, you will learn all about new WebKit features, including viewport-fit, constant(), safe area insets, and min() and max().
    
      
There, you will learn all about new WebKit features, including viewport-fit, constant(), safe area insets, and min() and max().
    
      
There, you will learn all about new WebKit features, including viewport-fit, constant(), safe area insets, and min() and max().
    
      
There, you will learn all about new WebKit features, including viewport-fit, constant(), safe area insets, and min() and max().
    
      
There, you will learn all about new WebKit features, including viewport-fit, constant(), safe area insets, and min() and max().
    
      
There, you will learn all about new WebKit features, including viewport-fit, constant(), safe area insets, and min() and max().
    
      
There, you will learn all about new WebKit features, including viewport-fit, constant(), safe area insets, and min() and max().
    
      
There, you will learn all about new WebKit features, including viewport-fit, constant(), safe area insets, and min() and max().
    
      
There, you will learn all about new WebKit features, including viewport-fit, constant(), safe area insets, and min() and max().
    
      
There, you will learn all about new WebKit features, including viewport-fit, constant(), safe area insets, and min() and max().
    
      
There, you will learn all about new WebKit features, including viewport-fit, constant(), safe area insets, and min() and max().
    
      
There, you will learn all about new WebKit features, including viewport-fit, constant(), safe area insets, and min() and max().
    
      
There, you will learn all about new WebKit features, including viewport-fit, constant(), safe area insets, and min() and max().
    
      
There, you will learn all about new WebKit features, including viewport-fit, constant(), safe area insets, and min() and max().
    
      
There, you will learn all about new WebKit features, including viewport-fit, constant(), safe area insets, and min() and max().
    
      
There, you will learn all about new WebKit features, including viewport-fit, constant(), safe area insets, and min() and max().
    
      
There, you will learn all about new WebKit features, including viewport-fit, constant(), safe area insets, and min() and max().
    
      
There, you will learn all about new WebKit features, including viewport-fit, constant(), safe area insets, and min() and max().
    
      
There, you will learn all about new WebKit features, including viewport-fit, constant(), safe area insets, and min() and max().
    
      
There, you will learn all about new WebKit features, including viewport-fit, constant(), safe area insets, and min() and max().
    
      
There, you will learn all about new WebKit features, including viewport-fit, constant(), safe area insets, and min() and max().
    
      
There, you will learn all about new WebKit features, including viewport-fit, constant(), safe area insets, and min() and max().
    
      
There, you will learn all about new WebKit features, including viewport-fit, constant(), safe area insets, and min() and max().
    
      
I hope that it helps you adopt these new features in your websites.
     
     
      About Me
      Contact
      Site Map