View source for MediaWiki:Common.css

/* CSS placed here will be applied to all skins */
@media screen and (prefers-color-scheme: dark) {
.infobox {
    background: #555;
    border: 1px solid #aaa;
    float: right;
    margin: 0 0 1em 1em;
    padding: 1em;
    width: 400px;
}
.infobox-title {
    font-size: 2em;
    text-align: center;
}
.infobox-image {
    text-align: center;
}
.infobox-table th {
    text-align: right;
    vertical-align: top;
    width: 120px;
}
.infobox-table td {
    vertical-align: top;
}
}


/* CSS placed here will be applied to all skins */
@media screen and (prefers-color-scheme: light) {
.infobox {
    background: #eee;
    border: 1px solid #aaa;
    float: right;
    margin: 0 0 1em 1em;
    padding: 1em;
    width: 400px;
}
.infobox-title {
    font-size: 2em;
    text-align: center;
}
.infobox-image {
    text-align: center;
}
.infobox-table th {
    text-align: right;
    vertical-align: top;
    width: 120px;
}
.infobox-table td {
    vertical-align: top;
}
}