Template:Tooltip/styles.css

.tooltip {
	position: relative;
	display: inline-block;
	border-bottom: 1px dotted black;
}

.tooltip > .text {
	visibility: hidden;
	position: absolute;
    left: 0;
    bottom: calc(2px + 100%);
	z-index: 1;
	min-width: 120px;
	padding: 5px;
	background: #fff;
	box-shadow: 1px 2px 0 0 rgba(0,0,0,0.15);
    border: 1px solid #aaa;
    border-radius: 5px;
	text-align: center;
	white-space: normal;
    font-weight: normal;
    font-style: initial;
    font-size: 14px;
    line-height: 1.6;
}

.tooltip:hover > .text {
	visibility: visible;
}