disable page zoom html code example

Example 1: lock the zoom html

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

Example 2: block zoom js mobile

<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />