body {
   background: #1c2367;   
   }

#main {
   background: url(back_01.jpg) no-repeat fixed center center;
   width: 760px;
   margin: 0px auto;
   padding-left: 20px;
   padding-right: 20px;
   }

#thumb_1 {
   float:right;
   position: absolute;
   top: 520px;
   right: 40%;
   }

#thumb_2 {
   float:right;
   position: absolute;
   top: 600px;
   right: 20%;
   }

#thumb_3 {
   float:right;
   position: absolute;
   top: 750px;
   right: 40%;
   }


#thumb_4 {
   float:right;
   position: absolute;
   top: 920px;
   right: 20%;
   }