Background
Nowadays even Apple iWatch has a minimum resolution of 352 pixels,
so we can safely remove the outdated feature phone font rules and
save bytes down-the-wire for users.
User story
As a user of a modern device I shouldn't have to download unnecessary styles that are there to support feature phones.
A/C
- Styles relating to media query below mobile are dropped.
- A min-width is applied to these devices to apply horizontal scroll so this degrades gracefully.