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.

/* 1. The Normal State */
.mw-parser-output .coverThumb .coverSmall a img,
.mw-parser-output .coverThumb .coverSmall img {
    width: 60px !important;
    height: 80px !important;
    object-fit: contain !important;
    display: block !important;
    transition: transform 150ms ease-in-out !important;
    pointer-events: auto; /* The small image detects the mouse */
}

/* 2. The Hover State */
.mw-parser-output .coverThumb:hover .coverSmall img {
    position: absolute !important;
    top: 0 !important;
    left: 0 !important;
    width: 300px !important; 
    height: auto !important;
    transform: translate(70px, -20px) !important;
    
    /* THE FLICKER FIX: */
    pointer-events: none; /* Mouse 'ignores' the big image so it doesn't trigger un-hover */
    
    z-index: 10000 !important;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5) !important;
    border: 1px solid #888 !important;
    background: #fff !important;
    max-width: none !important;
}

/* 3. Force the parent to stay active */
.mw-parser-output .coverThumb:hover {
    cursor: pointer;
}

/* 4. Layout Fixes */
.mw-parser-output .wikitable td {
    overflow: visible !important;
}

.mw-parser-output .coverThumb:hover .coverSmall {
    overflow: visible !important;
}