MediaWiki:Vector.css

@media screen and (min-width: 1200px) {
    .mw-page-container, .vector-header-container .mw-header, .vector-header-container .vector-sticky-header {
        padding-left: 3.25rem;
        padding-right: 3.25rem;
        background-color: #051e72;
        background: linear-gradient(180deg, #051e72 0, transparent 86.1333333333vw), linear-gradient(0deg, #051e72 0, transparent 52.6666666667vw), url(https://sonic-city.net/wp-content/uploads/2024/08/intro_bg.png) center top / auto 20px;
    }
}

.vector-pinned-container {
   background: #fff;
   border-radius: 12px;
   padding: 7px;
}

.vector-feature-limited-width-clientpref-0 .mw-content-container{
    background: #fff;
    border-radius: 12px;
    padding: 7px;
}