Board Thread:Support Requests - Designing Your Wiki/@comment-30509676-20190410223612/@comment-24931587-20190412152755

The capitalization of your CSS selector (.Leon_Scott_Kennedy_Theme_Song) doesn't match the page name (Leon Scott Kennedy/theme song). Either rename the page so "Theme Song" is capitalized, or change the CSS to put "theme_song" in lowercase.

By "full background", do you mean you want the image stretched to fill the content area instead of being repeated several times? You can do that by adding the following lines where you set the background image:

background-size: cover; background-repeat: no-repeat;

Also, make sure there's a semicolon at the end of your "background:" line.