body {
	font-family: sans-serif;
}
[data-title] {
	outline: red dotted 0px; /*optional styling*/
	font-size: 15px; /*optional styling*/
	position: relative;
	cursor: help;
}
[data-title]:hover::before {
	content: attr(data-title);
	position: absolute;
	bottom: 10px;
	left: 50px;
	display: inline-block;
	padding: 2px 6px;
	border-radius: 6px;
	background: #000;
	color: #ffff00;
	font-size: 15px;
	font-family: sans-serif;
	white-space: nowrap;
}
[data-title]:hover::after {
	content: '';
	position: absolute;
	bottom: 30px;
	left: 45px;
	display: inline-block;
	color: #fff;
	border: 8px solid transparent;
	border-bottom: 8px solid #000;
}