.tooltip{
    position: relative;
    cursor: pointer;
    display: inline-block;
}
.tooltip p{
    margin:0;
    padding:0;
}
.description {
    display: none;
    position: absolute;
    padding: 10px;
    font-size: 12px;
    line-height: 1.6em;
    color: #fff;
    border-radius: 5px;
    background: #000;
    width: 180px;
}
.description:before {
    content: "";
    position: absolute;
    top: -24px;
    right: 80%;
    border: 15px solid transparent;
    border-top: 15px solid #000;
    margin-left: -15px;
    transform: rotateZ(180deg);
}
.tooltip:hover .description{
    display: inline-block;
    top: 30px;
    left: 0px;
}