.cssnav
{
position: relative;
background: url(../mi_images/buttons/home_bone.jpg) no-repeat;
display: block;
width: 80px;
height: 125px;
margin: 0;
padding: 0;
margin-left: 60px;
}

.cssnav a
{
display: block;
width: 80px;
height: 125px;
float: left;
}

.cssnav img
{
width: 80px;
height: 115px;
border: 0
}

* html a:hover
{
visibility:visible
}

.cssnav a:hover img
{
visibility:hidden
}