The ‘tiny screen first’ boilerplate extension*

‘320 and Up’ prevents mobile devices from downloading desktop assets by using a tiny screen’s stylesheet as its starting point. Try this page at different window sizes and on different devices to see it in action.

Responsibly responsive

‘320 and Up’ starts with a tiny screen stylesheet that contains only reset, colour and typography styles. Media Queries then load assets and layout styles progressively and only as they’re needed. Think of this as responsible responsive design. ‘320 and Up’ is a device agnostic, one web boilerplate.