move ad above nav
correct margin around; unique id
larger above banner ad first
remove unnecessary styling
fix stupid rebasing
fix labelling and align ad to content body
different ad layout for article vs front
move transition from behind switch
min-height on commercial component
use mixin
no need for to be so specific; add webkit transform prefix
add border to ad, hide if js-off
don't use box-sizing
half grid unit for labelling
Merge pull request #4404 from guardian/banner-ad-above-nav

Commercial: moving ad above banner on desktop