HTMl
<div class="mod_Gnavi003">
<ul>
<li><a href="#"><img src="GlobalNavi_003a.jpg" width="150" height="135" alt="Menu01" /></a></li>
<li><a href="#"><img src="GlobalNavi_003b.jpg" width="149" height="135" alt="Menu02" /></a></li>
<li class="mod_current"><img src="GlobalNavi_003c.jpg" width="149" height="135" alt="Menu03" /></li>
<li><a href="#"><img src="GlobalNavi_003d.jpg" width="149" height="135" alt="Menu04" /></a></li>
</ul>
<!--mod_Gnavi003_end --></div>
CSS
.mod_Gnavi003 ul{
width:597px;
overflow:hidden;
position:relative;
}
.mod_Gnavi003 ul li{
height:45px;
float:left;
overflow:hidden;
}
.mod_Gnavi003 ul li.mod_current img{
margin-top:-90px;
display:block; /* IE6隙間防止 */
}
.mod_Gnavi003 ul li a{
display:block;
}
.mod_Gnavi003 ul li a:link {}
.mod_Gnavi003 ul li a:visited {}
.mod_Gnavi003 ul li a:hover {margin-top:-45px;}
.mod_Gnavi003 ul li a:active {margin-top:-45px;}