body {
  margin: 0;
  padding: 0;
}
#top {
  margin: 20px;
  padding: 10px;
  height: 180px;
}
#left {
  position: absolute;
  top: 220px;
  width: 50%;
; clip:   rect(   )
}
#center {
  margin-top: 0;
  margin-left: 35%;
  margin-right: 35%;
}
#right {
  position: absolute;
  right: 30px;
  top: 220px;
  width: 50%;
; clip:  rect(   )
}

/* Removes default top margin from left/right column paragraphs in Mozilla */
div > p {
  margin-top: 0;
}