img.mainImage
{ 
  width: 100%;
}

div.columnContainer
{ 
  position: relative;
}

div.column1
{ 
  width: 30%;
  float: left;
}

div.column2
{ 
  width: 30%;
  float: left;
  padding-left: 4%;
  padding-right: 4%;
}

div.column3
{ 
  width: 30%;
  float: left;
}