Gadget-breadcrumbs.css

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#breadcrumbs {
	font-weight: bold;
}

#breadcrumbs a::after {
    content: " > ";
    text-decoration: none;
    color: initial;
    cursor: auto;
}

#breadcrumbs a:hover {
	text-decoration:none;
}

#breadcrumbs a span:hover {
	text-decoration:underline;
}

#breadcrumbs > span { /*selflink styles for the last crumb (current page name)*/
	color: inherit;
	font-weight: bold;
	text-decoration: inherit;
	cursor: default;
}

MediaWiki

Gadget-breadcrumbs.css