div.tooltip { 
    background:  url(images/black1_arrow_big.png) no-repeat scroll 0 0; 
    font-size: 14px; 
    height: 153px; 
    padding: 30px; 
    width: 310px; 
    font-size: 14px; 
    display: none; 
    color: #fff; 
}