#content_right { position: relative; }
div.paper {
  width: 470px;
  padding: 10px 20px;
  /* padding: 0 90px 0 20px; */
  background: url(/images/content_new_bg_middle.gif) repeat-y 0 0;
}

div#backnumber {
  width: 112px;
  position: absolute;
  left: 515px;
  top: 160px;
}
div#backnumber ul {
  margin: -5px 0;
  padding: 10px 0 10px 8px;
  background: url(/images/content_new_backnumber_middle.gif) repeat-y 0 0;
}
div#backnumber li {
  padding-left: 8px;
  background: url(/images/content_new_backnumber_disc.gif) no-repeat 0 center;
  line-height: 1.6;
}