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
}
.form-control, .mw-htmlform-field-HTMLTextField input, .mw-input select, .mw-input textarea, body #contentwrapper #maincontentwrapper .oo-ui-textInputWidget .oo-ui-inputWidget-input
{
    background: #27272e;
    border:1px solid black;
    border-radius:0.8rem;
}
.navbar-brand {
    color: white
}

.bg-light {
    background: #1b1b1f
}
.navbar-light .navbar-nav .nav-link:focus, .navbar-light .navbar-nav .nav-link:hover {
    color: #6aa6b5;
}