HTML5 Tag Collection

<meta name= "viewport" content= "width=device-width,initial-scale=1 user-scalable=0"/>

Width: The value of the viewable area is either a number or a keyword device-width

Intial-scale: The first time the page is displayed is the zoom level of the viewable area, with a value of 1.0 the page is displayed in actual size without any zoom

User-scalable: Whether the page can be scaled, no disables scaling

<meta name= "format-detection" content= "Telephone=no" > iOS disable digital dialing

HTML5 Tag Collection