How do I add a separator line

How would I add a line to separate category's like this



I'd like to know how to do it vertically and horizontally.

Add this code in your CSS Stylesheet:
Administration Panel > Dispay > Colors > CSS Stylesheet

Code:

.forumline{
border-spacing:0px;
}

.forumline .row1, .forumline .row2, .forumline .row3, .forumline .row3Right {
padding: 2px 3px;
border-top: 1px solid rgba(0, 0, 0, 0.47);
box-shadow: 0 1px 0 rgba(255, 255, 255, 0.16) inset;
}

Admin panel> display> Colours> Look for the column table headers. 

I think it's in there. Maybe it's i. Background Colours

candy_fear wrote:Add this code in your CSS Stylesheet:
Administration Panel > Dispay > Colors > CSS Stylesheet

Code:

.forumline{
border-spacing:0px;
}

.forumline .row1, .forumline .row2, .forumline .row3, .forumline .row3Right {
padding: 2px 3px;
border-top: 1px solid rgba(0, 0, 0, 0.47);
box-shadow: 0 1px 0 rgba(255, 255, 255, 0.16) inset;
}

This will make it vertical as well?