hhh the struggle w trying to play with this is there's all this r20 specific formatting and things like the clickability that i can't finagle on my end... so i can get this far but have only so much wiggle room to actually fuss with what exists
using float: left in .sheet-tab and getting rid of position: absolute got the tabs to display one right after the other, even though it still gets the weird positioning issues from before
pbbbt so the tragic truth of the matter is that anything you do with css here is inevitably going to be bootleggy as SHIT because clickable content changes are the kind of thing that are supposed to be done with javascript/bootstrap; it's not IMPOSSIBLE to do with pure css but it's hard and inelegant and easy to break
but have only so much wiggle room to actually fuss with what exists