MediaWiki:Common.css

.navbar-light .navbar-brand,.navbar-light .navbar-brand:focus,.navbar-light .navbar-brand:hover {
    color: white
}

.bg-light,body {
    background: #1b1b1f !important;
    border-bottom:1px solid black;
}

#maincontentwrapper {
    overflow-wrap: break-word;
    background: #212126;
    border: 1px solid black;
    border-radius: 1.4rem;
    color: white
}

.navbar-brand {
    color: white
}
.navbar-light .navbar-nav .nav-link {
    color: white;
}