.tooltip {
	position: relative;
	display: inline-block;
}

.tooltip .tooltiptext {
	width: 150px;
	color: #fff;
	visibility: hidden;
	background-color: rgba(0,0,0,0.5);
	text-align: center;
	border-radius: 0px;
	padding: 5px 0px;
	position: absolute;
	z-index: 1;
	top: 200%;
	left: 50%;
	margin-left: -75px;
}

.tooltip .tooltiptext::after {
  	content: "";
  	position: absolute;
  	bottom: 100%;
  	left: 50%;
  	margin-left: -5px;
  	border-width: 5px;
  	border-style: solid;
  	border-color: transparent transparent black transparent;
}

.tooltip:hover .tooltiptext {
  	visibility: visible;
}