css 메뉴 질문드립니다. 채택완료

메뉴가 왼쪽에 붙어서 꼼짝을 않합니다.

중앙으로 오게 할려는데 시행착오를 너무 격어서 머리만 아품니다.

가운데 정렬할수 있도록 도움 질문합니다.

사이트 주소: http://www.216.co.kr">www.216.co.kr 입니다.

아래css 소스 입니다.

/* ================================================================

all times.

The original version of this stylesheet and the associated (x)html
is available at http://www.stunicholls.com/menu/pro_drop_1.html">http://www.stunicholls.com/menu/pro_drop_1.html
Copyright (c) 2005-2007 Stu Nicholls. All rights reserved.
This stylesheet and the associated (x)html may be modified in any
way to fit your requirements.
=================================================================== */

.preload1 {background: url(blank_over.gif);}
.preload2 {background: url(blank_overa.gif);}

#nav {padding:0; margin:0; list-style:none; height:36px; background:#fff; position:relative; z-index:500; font-family:arial, verdana, sans-serif;}
#nav li.top {display:block; float:left;}
#nav li a.top_link {display:block; float:left; height:36px; line-height:27px; color:#ccc; text-decoration:none; font-size:12px; font-weight:bold; padding:0 0 0 12px; cursor:pointer;background: url(blank.gif);}
#nav li a.top_link span {float:left; display:block; padding:0 24px 0 12px; height:36px; width:100px; background:url(blank.gif) right top;}
#nav li a.top_link span.down {float:left; display:block; padding:0 24px 0 12px; height:36px; background:url(blanka.gif) no-repeat right top;}
#nav li a.top_link:hover {color:#fff; background: url(blank_over.gif) no-repeat;}
#nav li a.top_link:hover span {background:url(blank_over.gif) no-repeat right top;}
#nav li a.top_link:hover span.down {background:url(blank_overa.gif) no-repeat right top;}

#nav li:hover > a.top_link {color:#fff; background: url(blank_over.gif) no-repeat;}
#nav li:hover > a.top_link span {background:url(blank_over.gif) no-repeat right top;}
#nav li:hover > a.top_link span.down {background:url(blank_overa.gif) no-repeat right top;}

/* Default list styling */

#nav li:hover {position:relative; z-index:200;}

/* keep the 'next' level invisible by placing it off screen. */
#nav ul,
#nav li:hover ul ul,
#nav li:hover ul li:hover ul ul,
#nav li:hover ul li:hover ul li:hover ul ul,
#nav li:hover ul li:hover ul li:hover ul li:hover ul ul
{position:absolute; left:-9999px; top:-9999px; width:0; height:0; margin:0; padding:0; list-style:none;}

#nav li:hover ul.sub
{left:0; top:31px; background: #fff; padding:3px; border:1px solid #3a93d2; white-space:nowrap; width:100px; height:auto; z-index:300;}
#nav li:hover ul.sub li
{display:block; height:20px; position:relative; float:left; width:100px; font-weight:normal;}
#nav li:hover ul.sub li a
{display:block; font-size:11px; height:20px; width:100px; line-height:20px; text-indent:5px; color:#000; text-decoration:none;}
#nav li ul.sub li a.fly
{background:#fff 100px 7px no-repeat;}
#nav li:hover ul.sub li a:hover
{background:#3a93d2; color:#fff;}
#nav li:hover ul.sub li a.fly:hover
{background:#3a93d2 100px 7px no-repeat; color:#fff;}
#nav li:hover ul li:hover ul,
#nav li:hover ul li:hover ul li:hover ul,
#nav li:hover ul li:hover ul li:hover ul li:hover ul,
#nav li:hover ul li:hover ul li:hover ul li:hover ul li:hover ul
{left:90px; top:-4px; background: #fff; padding:3px; border:1px solid #3a93d2; white-space:nowrap; width:100px; z-index:400; height:auto;}
​