.cssnav
{
position: relative;
font-family: arial, helvetica, sans-serif;
background: url("images/buttonon.png") no-repeat;
white-space: nowrap;
display: block;
width: 186px;
height: 40px;
    padding: 0;
}
.cssnav a{
display: block;
font-size: 12px;
width: 186x;
height: 40px;
display: block;
float: left;
color: #FFFFFF;
text-decoration: none;
font-weight: bold;
}
.cssnav img
{
width: 186px;
height: 40px;
border: 0
}
* html a:hover
{
font-size: 12px;
color: #FFFF00;
visibility:visible
}
.cssnav a:hover img
{
visibility:hidden
}
.cssnav span
{
position: absolute;
left: 17px;
top: 12px;
margin: 0px;
padding: 0px;
cursor: pointer;
width: 180px;
height: 14px;
}