div.column#a { 
  /*left: 20;
  width: 200;*/
  left: 2.5%;
  width: 25%;
  font-size: 14px;
  line-height: 17px;
}

div.column#b { 
  /*left: 240;
  width: 320;*/
  left: 30%;
  width: 40%;
}

div.column#c { 
  /*left: 580;
  width: 200;*/
  left: 72.5%;
  width: 25%;
  font-size: 14px;
  line-height: 17px;
}

div.column#bc {
  /*left: 240;
  width: 540;*/
  left: 30%;
  width: 67.5%;
}