coverage/css/tooltip.css

a.hastooltip {
	border-bottom: 1px dotted #00aa00;
	color: #000000;
	cursor: help;
	font-style: normal;
	position: relative; /* This is the key */
	text-decoration: none;
	z-index: 24; /* What does this do? */
}

a.hastooltip:active {
	color: #000000;
	text-decoration: none;
}

a.hastooltip:link {
	color: #000000;
	text-decoration: none;
}

a.hastooltip:hover {
	background-color: #a0b8ff;
	color: #000000;
	text-decoration: none;
	z-index: 25;
}

a.hastooltip:visited {
	color: #000000;
	text-decoration: none;
}

a.hastooltip span {
	display: none;
}

a.hastooltip:hover span {
	background-color: #eeeeee;
	border: 1px solid #000000;
	color: #000000;
	display: block;
	padding: 5px;
	left: -15.2em;
	position: absolute;
	text-align: center;
	text-decoration: none;
	top: 2em;
	width: 20em;
}