Oh, this is the first time I've ever clicked the down arrow.
On my computer the background colour is green (indicating 'full
support') but I now realise what the little square with the dash in it
means there's some relevant information available on hover.
> accessibility issue perhaps
>> Dr DuckDuckGo (DDDG) suggested I use -moz-fit-content and that seems
>> to get Firefox to behave as other browsers using fit-content.
> The information was there on MDN and CanIUse … just over looked and
Yes, I missed it both times.