custom css

[Luciano]

I'm using this custom css code but just the top one work (hide crew and cast) 
Am i doing anything wrong?

#castCollapsible {
  display: none;
}

#similarCollapsible {
  display: none;
}

[TheDreadPirate]

Did you add castCollapsible first and then add similarCollapsible?  Try ctrl+f5 to fully refresh or clear the site data in your browser for jellyfin. Your browser may be caching the page without the new CSS.

[Luciano]

the code was typed as i showed on the original post, did you see it? 
Using ctrl+f5 to fully refresh jellyfin page doesn't work
Using a clean data browser neither

[TheDreadPirate]

I saw it. Just wanted to make sure that everything was done at the same time. I don't see why it wouldn't work.