A website that uses responsive web design (RWD) adapts automatically when the size of the screen varies from high-resolution desktop displays through laptops, touchscreen tablets, and finally to handheld mobile devices.

Cookbook /
GridWorks  GridWorks - general utility css grid markup for wiki pages (Active/Stable)
ResponsiveGrid  A collection of CSS classes to help fast grid layouts (new)
Skins /
2016  Responsive skin very close to the default skin (Superseded by PmWiki-responsive)
Adapt  A mobile-friendly skin that adapts to suit the display size. (Beta)
Amber  responsive mobile-friendly skin for all devices (stable)
Classic  Responsive skin designed for classic-sf and folk song websites. (stable)
Mobile  Plain vanilla PmWiki responsive template that is compatible with mobile devices. (Active)
Papyrus  A simple skin, inspired by Parchment. Responsive / mobile-friendly. (maintained)
PmWiki-responsive  Responsive skin shipped with PmWiki (Production)
Vanilla5  Vanilla5 is a simple HTML5 compliant skin for PmWiki v2+
Vector  Clone of the Vector skin for MediaWiki (used on Wikipedia since 2010) (maintained)