MediaWiki:Common.css

Note: After publishing, you may have to bypass your browser's cache to see the changes.

Firefox / Safari: Hold Shift while clicking Reload, or press either Ctrl-F5 or Ctrl-R (⌘-R on a Mac)
Google Chrome: Press Ctrl-Shift-R (⌘-Shift-R on a Mac)
Edge: Hold Ctrl while clicking Refresh, or press Ctrl-F5.

/* Change background color of sidebar (vector menu panel) */
body.page-Main_Page .mw-sidebar,
body.page-Main_Page .vector-menu-sidebar,
body.page-Main_Page .vector-toc,
body.page-Main_Page #mw-panel {
    background-color: #800020 !important;
    color: white !important;
}

/* Change sidebar link text color */
body.page-Main_Page #mw-panel a {
    color: #ffffff !important;
}

/* Change sidebar link on hover */
body.page-Main_Page #mw-panel a:hover {
    color: #ffcccc !important;
    text-decoration: underline;
}

/* Optional: style inactive or greyed-out links */
body.page-Main_Page #mw-panel .new {
    color: #f4c2c2 !important;
}