Forum:Help making an infobox work?

My friend has set up a wiki and asked me to make the infoboxes for their wiki, but we cannot get the colour of the infoboxes to change. HEEEEEEELLLLLLLPPPPP!

https://minecraftgrashavet.fandom.com/no/wiki/Mal:Karakter/sandbox

https://minecraftgrashavet.fandom.com/no/wiki/Mal:CaptainInfobox

HarryPotterRules1 (talk) 22:28, 29 October 2023 (UTC)