body { 
  background-color: #000000; 
}

#outer { 
  width: 1000px; 
  height: 939px;
  margin-left: auto; 
  margin-right: auto; 
}

#image_content { 
  width: 640px; 
  margin-left: auto; 
  margin-right: auto;
  padding: 10px;
}

.nav { 
  width: 640px; 
  margin-left: auto; 
  margin-right: auto;
}

.nav_prev { 
  float: left; 
  width: 49%; 
}

.nav_next { 
  float: right; 
  width: 49%; 
}

.parchment_content {
  width: 640px; 
  margin-left: auto; 
  margin-right: auto;
  padding: 10px;
  /* paths are relative to the path of the CSS file */
  background: url(background_parchment.jpg) repeat;
}

.cntrtxt {
  text-align: center;
}

.stony { 
  background: url(rock_bg.jpg); padding-bottom: 10px;
}

.parchment { 
  background: url(background_parchment.jpg) repeat; 
}