MediaWiki:Common.css

/* CSS placed here will be applied to all skins */
@import "/var/www/html/wiki/extensions/FontAwesome/res/fontawesome/css/all.min.css";

.mw-wiki-logo {
	background-size: 260px;
}

.tooltip{
  position: relative;
}

.tooltiptext {
  position: absolute;
  display: block;
  z-index: 2;
  width: 250px;
  padding: 10px;
  visibility: hidden;
  opacity: 0;
  white-space: normal;
  text-align: left;
  transition: all 0.2s;
  border: 1px solid #aaa;
  background-color: #F0F0FF;
}

.tooltip:hover>.tooltiptext {
  visibility: visible;
  opacity: 1;
}