.div_nav_btn{
 position:absolute;
 width:12%;
 height:7%;
 left:-0.1%;
 overflow:hidden;
}

#div_nav_1{ top:15%;}
#div_nav_2{ top:22.5%;}
#div_nav_3{ top:30%;}
#div_nav_4{ top:38%;}
#div_nav_5{ top:45.5%;}
#div_nav_6{ top:53%;}
#div_nav_7{ top:61%;}
#div_nav_8{ top:68.5%;}
#div_nav_9{ top:76%;}


.div_nav_btn button{
 cursor:pointer;
 display:block;
 height:100%;
 text-align:center;
 color:#CCCCCC;
 width:100%;
 font-weight:bold;
 text-decoration:none;
 font-size:130%;
 background-color: #FFFFFF;
 background-repeat:no-repeat;
 background-position: 10px center;
 background-image: url(/img?n=default.jpg&dd=y&size=40);
 border: 1px #C3D9FF solid;
 border-radius:0px 10px 10px 0px;
 -moz-border-radius:0px 10px 10px 0px;
 -webkit-border-radius: 0px 10px 10px 0px;
 padding-left:50px;
 text-align:left;
}

.div_nav_btn button:hover{
 border: 1px #0000FF solid;
 color:#808080;
}