Use the Meta attribute to disable the zoom function of the phone browser

On the mobile device browser, you can disable the zoom (zooming) feature by setting the Meta property to User-scalable=no for the viewport (viewport). By disabling the zoom feature, users can only scroll the screen to make your site look more like the native app. Note that this way we do not recommend the use of all sites, or to see your own situation depends on!

<meta name= "viewport" content= "Width=device-width, initial-scale=1, maximum-scale=1, User-scalable=no" >

Another way to write is the following: (above is written on the bootcss document, I often use the above.) ）

<meta name= "viewport" content= "Width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0"/>

Use the Meta attribute to disable the zoom function of the phone browser