CSS rule `.content table.infobox td { width: 100% }` added in rEMFR98b155f7ebf75381c4e28dcab91d9d61839e8462 (T162913) broke a [[ https://cs.wikipedia.org/wiki/%C5%A0ablona:Infobox_-_medaile | widely used template in cswiki ]]. You can see an example in [[ https://cs.m.wikipedia.org/wiki/Jarmila_Kratochv%C3%ADlov%C3%A1 | this article (mobile version) ]], the table in question is below the main infobox and has title "Přehled medailí". The middle column is much wider whereas the rightmost is as tight as possible, wrapping the words unnecessarily. Disabling the rule in browser's console fixes the problem.
This has been [[ https://cs.wikipedia.org/w/index.php?oldid=15107293#Šablona_medaile_v_mobilní_wiki | discussed ]], the conclusion was to report it here.
With rule (current):
Tablet: {F8515838}
Mobile: {F8516458}
Without rule (proposed):
Tablet: {F8515836}
Mobile: {F8516462}