.box {
    position: relative;
    display: inline-block;
    z-index: 1000;
}
.popup {
    position: absolute;
    background-color: #000;
    color: #fff;
    padding: 10px;
    border: 1px solid #f6f6f6;
    min-width: 200px;
    margin-top: -17px;
    margin-left: 10px;
}