Make a web interface feel native on a phone. Touch targets, dynamic viewport height, safe areas, tap highlight and sticky hover, input zoom, touch-action and overscroll, sheets and bottom bars in the thumb zone, the on-screen keyboard, momentum and pull-to-refresh conflicts, and performance on a mid-range device. Use when a site "feels like a website" on mobile, when building bottom sheets, bottom navigation or mobile forms, or before shipping anything people will use on a phone.
