Adding Spaces in Categories in Sidebox

I need help to add some gray space between each category on the left sidebox.

This is what the client wants:

Here is my website now: http://www.mpmedicalsupplies.com

The category menu has a blue background with white text.

Any ideas would be helpful.

Almost gave up on page loading....

Find this in your stylesheet and change the padding statement to this and adjust t suit

#categoriesContent ul li{
	margin:0;
	font-size:1.2em;
	padding: 0em 0em 1em .5em;
	font-weight:bold;
	}

Edited: Opps....actual grey lines.... be back as this will time out

This gets 95% of what you posted - adjust to suit

#categoriesContent ul li{
        border-bottom: 10px solid #9a9a9a;
	margin:0;
	font-size:1.2em;
	padding-left:5px;
	font-weight:bold;
	}

Kobra,

Thank you...that helps, but I still have the margins that remain blue.

Never mind...I was able to zero out the margins and it looks great. Thanks, Kobra.