.odsun {width:600px; margin-left:378px; margin-right:0px; margin-top:-172px;}

#nav li { float:left; list-style-type: none;  }

#nav li a { /* background-image:url("../3_05bck/menu.png"); */  width:130px; height:130px; display:block;}
            
#nav li a.item1 {background-position:0px 0px; background-image:url("../3_05bck/1.png"); margin-right:7px; }
#nav li a.item2 {background-position:0px 0px; background-image:url("../3_05bck/2.png"); margin-top:-30px; margin-right:11px; }
#nav li a.item3 {background-position:0px 0px; background-image:url("../3_05bck/3.png"); margin-top:-55px; margin-right:19px;}
#nav li a.item4 {background-position:0px 0px; background-image:url("../3_05bck/4.png"); margin-top:-69px;}

#nav li a:hover.item1, #nav li a:hover.item2, #nav li a:hover.item3, #nav li a:hover.item4   
{background-position:0px -130px;}