== Issue
As the result of removing `-webkit-tap-highlight-color: transparent` (see T188043), Android's default highlight color of **aqua** is now showing up quite prominently in mobile web (it appears when tapping links, collapsable sections, menu items, buttons, icons, and more). This was an oversight on my part while testing.
== Steps to reproduce
# Go to https://en.m.wikipedia.org/wiki/Main_Page on an Android device
# Tap on some links, images, section titles, nav items
(here is a screen recording, although the aqua is much brighter in real life)
{F15306074}
== Expected Behavior
* Tappable elements show
# text changing colors (for links) (we can call this optional for the scope of this ticket)
# a background highlight of transparent black
== Actual Behavior
* Tappable elements show
# text changing colors (for links) (we can call this optional for the scope of this ticket)
# a background highlight of aqua (Android only)
== Environments
* Samsung Galaxy S6, v7.0
* Chrome (latest)
== Acceptance criteria
[] Restore `-webkit-tap-highlight-color: transparent`` but only for Android browsers. To do this we should target the `:active` state which is no longer being rendered on iOS browsers