#tooltip
{
	text-align: center;
	color: #fff;
	background: #111;
	position: absolute;
	z-index: 100;
	padding: 15px;
}

	#tooltip:after /* triangle decoration */
	{
		width: 0;
		height: 0;
		border-left: 10px solid transparent;
		border-right: 10px solid transparent;
		border-top: 10px solid #111;
		content: '';
		position: absolute;
		left: 50%;
		bottom: -10px;
		margin-left: -10px;
	}

		#tooltip.top:after
		{
			border-top-color: transparent;
			border-bottom: 10px solid #111;
			top: -20px;
			bottom: auto;
		}

		#tooltip.left:after
		{
			left: 10px;
			margin: 0;
		}

		#tooltip.right:after
		{
			right: 10px;
			left: auto;
			margin: 0;
		}