/* 2 Column (left menu) settings */
.threecol {
  background:#fff;    /* right column background colour */
}
.threecol .colleft {
  right:75%;      /* right column width */
  background:#004200; /* left column background colour */
}
.threecol .col1 {
  width:71%;      /* right column content width */
  left:100%;      /* 100% plus left column left padding */
}
.threecol .col2 {
  width:25%;      /* left column content width (column width minus left and right padding) */
  left:4%;      /* (right column left and right padding) plus (left column left padding) */
}