.rbroundbox { background: url(nt.gif) repeat; }
.rbtop div { background: url(tl.gif) no-repeat top left; }
.rbtop { background: url(tr.gif) no-repeat top right; }
.rbbot div { background: url(bl.gif) no-repeat bottom left; }
.rbbot { background: url(br.gif) no-repeat bottom right; }
.rbtop div, .rbtop, .rbbot div, .rbbot {
width: 100%;
height: 7px;
font-size: 1px;
}
.rbcontent { margin: 0 15px; }
.rbroundbox { width: 90%; margin: 1em auto; }




.box_ocean { 
  background: #E6F3F7; 
  width: 95%;
}
.boxtop_ocean { 
  background: url(ne.gif) no-repeat top right; 
}
.boxtop_ocean div { 
  font-size: 0;
  height: 10px; 
  background: url(nw.gif) no-repeat top left; 
}
.boxbottom_ocean { 
  background: url(se.gif) no-repeat bottom right; 
}
.boxbottom_ocean div { 
  font-size: 0;
  height: 10px; 
  background: url(sw.gif) no-repeat bottom left; 
}
.boxcontent_ocean {
  padding: 0px 10px 0px 10px;
}