As of current, MinervaNeue's header height, which has been a result of some calculation 5 years ago, is set to 3.35em.
Which results in browser default settings in 53.6px.
Let's set this to a full pixel equivalent, proposed 54px.
As well as changing @headerHeight we'll need to update any calculations that use it (as LESS cannot deal with calculations of mixed units). Luckily there is only one case in the search overlay: top: ( @headerHeight / 2 ) - ( @iconSize / 2 ); That appears to be easy to deal with.