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

An interview is required to  be detailed <meta name= "viewport" content= "initial-scale=1, maximum-scale=1, User-scalable=no, width=device-width" >

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

Content Property Value: Width: Viewable range, value can be a number or keyword device-width height: same width Intial-scale: The first time the page is displayed is the zoom level of the viewable area, the value 1.0 is displayed by the actual size,     No zoom maximum-scale=1.0, minimum-scale=1.0, zoom level of the viewable area, maximum-scale the user can enlarge the page program, 1.0 will prohibit the user to enlarge to the actual size above. User-scalable: Whether the page can be scaled, no disables scaling

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