MediaWiki:Vector-2022.css

/* Hide site name and tagline */
.mw-wiki-title,
.vector-logo-tagline {
    display: none;
}

/* Make the logo large and round */
.mw-logo-icon {
    width: 150px !important;
    height: 150px !important;
    border-radius: 50%;
    overflow: hidden;
}

.mw-logo {
    display: flex;
    align-items: center;
    justify-content: center;
}