MediaWiki:Monobook.css

/* replace the book in the background with dark green */ body { background: #003816; }

/* tab formatting */
 * 1) p-cactions ul li a { background: #008434; } /* change background of unselected tabs to green*/
 * 2) p-cactions ul li a {color: White;} /* change text colour of unselected tabs to White*/
 * 3) p-cactions ul li a:hover {color: #339933;} /* change text colour of unselected, highlighted tab to green*/
 * 4) p-cactions ul li.selected a {color: #339933;} /* change text colour of selected tab to green*/
 * 5) p-cactions ul li.selected a:hover {text-decoration: underline;} /* change text of selected tab to underlined on hover*/
 * 6) p-cactions h5 {color: White;}