html,
body {
  height: 100%;
  /* The html and body elements cannot have any padding or margin. */
}
/* Wrapper for page content to push down footer */
#wrap {
  height: 99%;
  /* Negative indent footer by its height */
  margin: 0 auto -80px;
  /* Pad bottom by footer height */
  padding: 50px 0 60px;
}
#wrap div{
  height: 100%;
}

/* Set the fixed height of the footer here */
footer {
  height: 60px;
  background-color: #f5f5f5;
}
hr {
  border-top-color: #CCC;
}
#surface {
  height: 100%;
  width: 100%;
}
#surface2 {
  height: 100%;
  width: 100%;
}