67b69de3_META_Tags_Learn_the_Mobile_Web__Description
[Viewport META directive] minimum-scale [Example Value] minimum-scale=0.5 [Description] 
Sets the user’s minimum limit for scaling or zooming a Web page. Values are numeric and can range from 0.25 to 10.0. The value of this directives is a scaling factor or multiplier applied to the viewport contents.
» Mobile META Tags Learn the Mobile Web
Description