.tip
{
    font-size: 12px;
    border: solid 1px gainsboro;
    width: 250px;
    padding: 5px;
    position: absolute;
    z-index: 100;
    visibility: hidden;
    color: #000000;
    top: 20px;
    left: 90px;
    background-color: #F9F9F9;
}