You can selectively hide parts of any MediaWiki page from its mobile view. It means you can set certain page sections to show only on desktop view and not on tablets and smartphones.
Default MediaWiki installation is not programmed to go responsive on many mobile devices (i.e. smartphones and tablets). It is not mobile optimized and hence you will have to use additional skins or extensions to make a responsive MediaWiki website.
Otherwise your website may be difficult to view, with menus, layouts and media, not appearing in the best place on small screen devices.
In this lesson you will learn about completely optimizing your MediaWiki website for mobile devices, implementing a responsive layout to make it look good on all screen types.