MediaWiki:Vector.css

/* https://www.mediawiki.org/wiki/Skin:Vector/Customizing_the_logo_for_special_events */
.mw-logo {
	position: relative;
}

.mw-logo-icon {
	width: 30px;
	height: 30px;
}

.mw-logo:before {
	content: '';
	background-image: url(https://upload.wikimedia.org/wikipedia/commons/d/de/Party_hat_%28fun%29.png);
	width: 200px;
	height: 400px;
	background-repeat: no-repeat;
	background-size: 50px auto;
	transform: rotate(-20deg);
	position: absolute;
	top: -63px;
	left: 41px;
}

.mw-wiki-logo {
	 background-image: url(//upload.wikimedia.org/wikipedia/commons/0/01/WikiSP-Birthday-es_01.png);
}

/* Adjusted Vector Appearance */
body {
        background-color: #f8f9fa;
}

#mw-page-base {
        background-color: #f8f9fa;
        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  {
        font-weight:bold;
}
div.vectorTabs ul li span a:hover {
        text-decoration: none;
}
#catlinks {
        border:none;
        padding:10px;
}

.vectorTabs ul li {
        background-color: #f8f9fa !important;
}

#toc {
        border:none;
        padding:14px;
}

/* Typography */
/* Makes site-wide what has been implemented on a page-by-page basis */

body {
  font-family:'Montserrat', 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

div#content h1, div#content h2, div#content, #firstHeading {
	font-family:'Montserrat', 'Helvetica Neue', Helvetica, Arial, sans-serif !important;
}

.firstHeading {
   border-bottom: none;
   margin-bottom:0.5em !important;
   padding-left:0;
   font-size: 2.4em !important;
   width:100%;
   margin:auto;
   border-collapse:collapse;
   vertical-align:top;
   line-height:100%;
   font-weight: 700;
}

.mw-body h2 {
  margin-bottom: 1em;
}

div#mw-panel div.portal#p-navigation div.body {
  background-image:none;
}

div#content {
  border: 1px solid #c8ccd1;
}

#mw-head-base {
  border-bottom: 1px solid #c8ccd1;
}