Not all menu items clickable?

I have the menu positioned on the page how I want, but now it seems only the last couple links on the right are clickable!?

Here’s the page: http://www.jeremyrandalljohnston.com

Here’s the current code I’m working with:

#access a {
margin:0 auto;
color: #555;
display: inline-block;
position: relative;
left: 85px;
font-size: 21px;
padding: 21px 10px 0px;
height: 45px;
}

I appreciate the feedback! I’ve been doing what I can to self-teach myself CSS. I’m getting there! Thanks again!

Cheers, Jeremy