div.navi a div.navi-6 {
height: 73px;
background-image: url(/static/i/navi-top/6-it.jpg);
background-repeat: no-repeat;
background-position: left top;
}
div.navi a:hover div.navi-6 {
height: 73px;
background-image: url(/static/i/navi-top/6-it-hover.jpg);
background-repeat: no-repeat;
background-position: left top;
}