MediaWiki:Breadcrumb.css

.breadcrumb {
	padding-bottom: 1rem !important;
}

.breadcrumb-item i {
  margin-left: 5px;
  color: rgba(0, 0, 0, 0.2);
}

.breadcrumb-item:hover {
  background-color: #f9f9f9;
}

.breadcrumb-item:hover:after {
  border: 14px solid #f9f9f9;
  border-left-color: transparent;
  border-bottom-color: transparent;
}

.breadcrumb-item:first-child:hover {
  background-color: rgba(52, 134, 235, 0.15);
}

.breadcrumb-item + .breadcrumb-item::before {
	content: "" !important;
	padding-right: 0 !important;
}

.breadcrumb-item:hover {
	background-color: transparent !important;
}