Board Thread:Support Requests - Getting Technical/@comment-25171833-20150513230546/@comment-1716540-20150514211423

The following CSS added to MediaWiki:Wikia.css will change the background of all infoboxes: .wikia-infobox { background: url("http://example.com/backgroundimage.png"); } To get the full URL of an image that has been uploaded to your wiki you will have to go to its File:NAMEOFIMAGE page, right click on the image and click 'view image'.

If you want a background image for one specific infobox then on that template's page add

style="background: url("http://example.com/backgroundimage.png");"

Just after