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.

/* CSS placed here will be applied to all skins */
.mw-sticky-header th {
    position: sticky;
    top: 0;
    z-index: 10; /* Ensures headers layer above other content */
    background-color: #f9f9f9; /* Helps maintain existing header background color */
}