Twenty eleven theme – why is my menu bar shorter than my page width?

Hi, I am using Twenty Eleven child theme and have adjusted my page width to 1000px however my navigation menu has padding to the left and right which is making it sit around 820px wide. What do I need to change so it runs 100% of the page?

Website: http://www.ldmriviera.com.au/marine-news/

Below are the settings of #access and #access ul. I even tried changing the width to 1000px but this didn’t work either.

I have tried all I can think of without any success.
Thanks in advance.

#access {
	background: #ffffff; /* Show a solid color for older browsers */
	clear: both;
	display: block;
	float: left;
	margin: 0 0 0 0;
	max-width:100%;
	text-transform:uppercase;
}
#access ul {
	font-size: 11px;
	color:666666;
	list-style: none;
	margin: 0 0 0 -0.8125em;
	padding-left: 0;
	max-width:100%;
}