MediaWiki:Common.css

Note: After saving, 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)
• Internet Explorer / Edge: Hold Ctrl while clicking Refresh, or press Ctrl-F5
• Opera: Go to Menu → Settings (Opera → Preferences on a Mac) and then to Privacy & security → Clear browsing data → Cached images and files.

/* Base tab style */
.vectorTabs li a {
    background-color: #191919 !important; /* dark base */
    color: #e6e6e6 !important;
    padding: 5px 10px !important;
    border: none !important;
    border-radius: 0 !important;
    text-decoration: none !important;
    position: relative; /* enable pseudo-element positioning */
    transition: background-color 0.3s ease;
}

/* Hover effect */
.vectorTabs li a:hover {
    background-color: #212121 !important;
    color: white !important;
}

/* Active tab with blue fading overlay */
.vectorTabs li.selected a {
    background-color: #191919 !important;
    color: #cce4ff !important;
    font-weight: bold !important;
}

/* Blue fading overlay using a pseudo-element */
.vectorTabs li.selected a::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(
        to bottom right,
        rgba(30, 144, 255, 0.6),   /* DodgerBlue with opacity */
        rgba(25, 25, 25, 0.8)      /* dark fade */
    );
    border-radius: 0 !important;
    pointer-events: none; /* allow clicks through this layer */
    z-index: 0;
}

/* Ensure text is above the overlay */
.vectorTabs li.selected a > * {
    position: relative;
    z-index: 1;
}