MediaWiki:Vector.css

body {
        background-color: #fff;
}
#mw-page-base {
        background-image: none;
}
div#content {
        border: 1px solid #fff;
}
div.vectorTabs ul li {
        background-image: none;
        background-color: #fff;
}
#p-views, #p-views *, #p-namespaces, #p-namespaces * {
        background-image: none;
}
div.vectorTabs ul li.selected  {
        border-bottom: 2px solid #347bff;
}
div.vectorTabs ul li span a:hover {
        text-decoration: none;
}