.tooltip{
    display: inline;
    position: relative;

}
.tooltip:hover:after{
    background: #333;
    background: rgba(0,0,0,.8);
    border-radius: 5px;
    bottom: 21px;
    color: #fff;
    content: attr(tooltip);
    left: 20%;
    padding: 5px 15px;
    position: absolute;
    z-index: 98;
    width: 220px;
	font-size:11px;
	line-height:16px;
}
.tooltip:hover:before{
    border: solid;
    border-color: #333 transparent;
    border-width: 6px 6px 0 6px;
    bottom: 15px;
    content: "";
    left: 50%;
    position: absolute;
    z-index: 99;
}