How do I remove a section of the border on a div to make left nav look seamless with main content section?

Question

I am trying to remove the left border where the active menu item meets right content div.

See http://d.pr/i/hfRZ+

So it appears the active element is the same as

Answer 1

.selected-item {
  border-left: 0px;
  border-top: 0px;
  border-right: 0px;
  border-bottom: 0px
}