MediaWiki:Common.css

.mw-body {
    margin-top: -1px;
    border: 1px solid #00cfa3;
    border-right-width: 0;
}

.vector-menu-tabs-legacy li {
    background-image: linear-gradient(to top, #00cfa3 0, #e8f2f8 1px, #fff 100%);
    background-position: left bottom;
    background-repeat: repeat-x;
    float: left;
    display: block;
    height: 100%;
    margin: 0;
    padding: 0;
    line-height: 1.125em;
    white-space: nowrap;
}

.vector-menu-tabs-legacy li a {
    background-position: right bottom;
    color: #32325d;
    box-sizing: border-box;
    display: block;
    float: left;
    height: 3.07692308em;
    position: relative;
    padding-top: 1.25em;
    padding-left: 8px;
    padding-right: 8px;
    font-size: 0.8125em;
    cursor: pointer;
}

.mw-body h1, .mw-body .mw-heading1, .mw-body-content h1, .mw-body-content .mw-heading1 {
    font-size: 1.8em;
    color: #32325d;
}

.vector-menu-tabs, .vector-menu-tabs a, #mw-head .vector-menu-dropdown .vector-menu-heading {
    background-image: linear-gradient(to bottom, rgba(167, 215, 249, 0) 0, #00cfa3 100%);
    background-repeat: no-repeat;
    background-size: 1px 100%;
}

.vector-menu-tabs-legacy .selected a, .vector-menu-tabs-legacy .selected a:visited {
    color: #32325d;
    text-decoration: none;
}