Board Thread:Support Requests - Designing Your Wikia/@comment-25463843-20150926200236/@comment-26069300-20150927154038

Hi!

You just have to add the following in the Special:CSS page of your Wiki.

.portable-infobox { width: 300px; }

Isn't necessary to be 300px, it can be 600 or 1000px if you want. The value to put in that part is up to you.

Hope this was useful for you!