gistfile1.css

/* Pure CSS tool tips from CSS Mastery, originally by Eric Meyer? With fix for IE, see below */

a.tooltip {
	position: relative;
}

a.tooltip span {
	display: none;
}

a.tooltip:hover {
	z-index: 100;	/* must be here and not on span below, for IE7 */
	visibility: visible;	/* for IE6 */
}

a.tooltip:hover span {
	display: block;
	position: absolute;
	top: 2em;
	left: 0;
	padding: 0.2em 0.6em;
	border: 1px solid #b1b2a7;
	background-color: #f0f1e1;
	color: black;
	text-decoration: none;
	border-radius: 5px;
	-moz-border-radius: 5px;
	-webkit-border-radius: 5px;
}