Hi everyone. Hope you are all keeping well.
I have exhausted myself trying to figure this out. Yotube+google did not help so turning to you guys/girls.
I am trying to center a spry menu on my page and at the same time keep it fluid but cannot seem to do it. I am using dreamweaver. Oh, i could actually center it but it was not responsive. ie, it did not resize when the browser was resized once i defined width in pixels. This is my first attempt at building a website using percentages%. I have failed at the first hurdle really and am frustrated to the point where i think i am soon going to hurt myself

here is the html:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>aberdeenshire sports council</title>
<link href="style.css" rel="stylesheet" type="text/css" />
<script src="SpryAssets/SpryMenuBar.js" type="text/javascript"></script>
<link href="SpryAssets/SpryMenuBarHorizontal.css" rel="stylesheet" type="text/css" />
</head>

<body>
<div id="pageContainer">

<div id="header">
<div id="header_logo">bbbbbbbbbb</div>
<div id="header_unknown_content">bbbbbbbbbbbbbbbbbb</div>
</div>

<div id="navigation">
<div id="top_navbar">
<ul id="MenuBar1" class="MenuBarHorizontal">
<li><a href="#">Home</a> </li>
<li><a href="#">Latest News</a></li>
<li><a class="MenuBarItemSubmenu" href="#">About Us</a>
<ul>
<li><a class="MenuBarItemSubmenu" href="#">1</a>
<ul>
<li><a href="#">Item 3.1.1</a></li>
<li><a href="#">Item 3.1.2</a></li>
</ul>
</li>
<li><a href="#">2</a></li>
<li><a href="#">3</a></li>
<li><a href="#">4</a></li>
<li><a href="#">5</a></li>
<li><a href="#">6</a></li>
</ul>
</li>
<li><a href="#" class="MenuBarItemSubmenu">Grants</a>
<ul>
<li><a href="#">1</a></li>
<li><a href="#">2</a></li>
<li><a href="#">3</a></li>
<li><a href="#">4</a></li>
<li><a href="#">5</a></li>
<li><a href="#">6</a></li>
</ul>
</li>
<li><a href="#" class="MenuBarItemSubmenu">Club Cap</a>
<ul>
<li><a href="#">1</a></li>
<li><a href="#">2</a></li>
</ul>
</li>
</ul>
</div>
<div id="bottom_navbar">Content for id "bottom_navbar" Goes Here</div>
</div>

<div id="content">
<div id="upper_content">Content for id "upper_content" Goes Here</div>
<div id="column_container">
<div id="column_1">Content for id "column_1" Goes Here</div>
<div id="column_2">Content for id "column_2" Goes Here</div>
<div id="column_3">Content for id "column_3" Goes Here</div>

</div>

</div>

<div id="footer">FOOTER</div>

</div>
<script type="text/javascript">
var MenuBar1 = new Spry.Widget.MenuBar("MenuBar1", {imgDown:"SpryAssets/SpryMenuBarDownHover.gif", imgRight:"SpryAssets/SpryMenuBarRightHover.gif"});
</script>
</body>
</html>

here is the css

ul.MenuBarHorizontal
{
margin: 0;
padding: 0;
list-style-type: none;
font-size: 100%;
cursor: default;
width: auto;
}
/* Set the active Menu Bar with this class, currently setting z-index to accomodate IE rendering bug: http://therealcrisp.xs4all.nl/meuk/IE-zindexbug.html */
ul.MenuBarActive
{
z-index: 1000;
}
/* Menu item containers, position children relative to this container and are a fixed width */
ul.MenuBarHorizontal li
{
margin: 0;
padding: 0;
list-style-type: none;
font-size: 100%;
position: relative;
text-align: left;
cursor: pointer;
width: 8em;
float: left;
}
/* Submenus should appear below their parent (top: 0) with a higher z-index, but they are initially off the left side of the screen (-1000em) */
ul.MenuBarHorizontal ul
{
margin: 0;
padding: 0;
list-style-type: none;
font-size: 100%;
z-index: 1020;
cursor: default;
width: 8.2em;
position: absolute;
left: -1000em;
}
/* Submenu that is showing with class designation MenuBarSubmenuVisible, we set left to auto so it comes onto the screen below its parent menu item */
ul.MenuBarHorizontal ul.MenuBarSubmenuVisible
{
left: auto;
}
/* Menu item containers are same fixed width as parent */
ul.MenuBarHorizontal ul li
{
width: 8.2em;
}
/* Submenus should appear slightly overlapping to the right (95%) and up (-5%) */
ul.MenuBarHorizontal ul ul
{
position: absolute;
margin: -5% 0 0 95%;
}
/* Submenu that is showing with class designation MenuBarSubmenuVisible, we set left to 0 so it comes onto the screen */
ul.MenuBarHorizontal ul.MenuBarSubmenuVisible ul.MenuBarSubmenuVisible
{
left: auto;
top: 0;
}

/*******************************************************************************

DESIGN INFORMATION: describes color scheme, borders, fonts

*******************************************************************************/

/* Submenu containers have borders on all sides */
ul.MenuBarHorizontal ul
{
border: 1px solid #CCC;
}
/* Menu items are a light gray block with padding and no text decoration */
ul.MenuBarHorizontal a
{
display: block;
cursor: pointer;
background-color: #EEE;
padding: 0.5em 0.75em;
color: #333;
text-decoration: none;
}
/* Menu items that have mouse over or focus have a blue background and white text */
ul.MenuBarHorizontal a:hover, ul.MenuBarHorizontal a:focus
{
background-color: #33C;
color: #FFF;
}
/* Menu items that are open with submenus are set to MenuBarItemHover with a blue background and white text */
ul.MenuBarHorizontal a.MenuBarItemHover, ul.MenuBarHorizontal a.MenuBarItemSubmenuHover, ul.MenuBarHorizontal a.MenuBarSubmenuVisible
{
background-color: #33C;
color: #FFF;
}

/*******************************************************************************

SUBMENU INDICATION: styles if there is a submenu under a given menu item

*******************************************************************************/

/* Menu items that have a submenu have the class designation MenuBarItemSubmenu and are set to use a background image positioned on the far left (95%) and centered vertically (50%) */
ul.MenuBarHorizontal a.MenuBarItemSubmenu
{
background-image: url(SpryMenuBarDown.gif);
background-repeat: no-repeat;
background-position: 95% 50%;
}
/* Menu items that have a submenu have the class designation MenuBarItemSubmenu and are set to use a background image positioned on the far left (95%) and centered vertically (50%) */
ul.MenuBarHorizontal ul a.MenuBarItemSubmenu
{
background-image: url(SpryMenuBarRight.gif);
background-repeat: no-repeat;
background-position: 95% 50%;
}
/* Menu items that are open with submenus have the class designation MenuBarItemSubmenuHover and are set to use a "hover" background image positioned on the far left (95%) and centered vertically (50%) */
ul.MenuBarHorizontal a.MenuBarItemSubmenuHover
{
background-image: url(SpryMenuBarDownHover.gif);
background-repeat: no-repeat;
background-position: 95% 50%;
}
/* Menu items that are open with submenus have the class designation MenuBarItemSubmenuHover and are set to use a "hover" background image positioned on the far left (95%) and centered vertically (50%) */
ul.MenuBarHorizontal ul a.MenuBarItemSubmenuHover
{
background-image: url(SpryMenuBarRightHover.gif);
background-repeat: no-repeat;
background-position: 95% 50%;
}

/*******************************************************************************

BROWSER HACKS: the hacks below should not be changed unless you are an expert

*******************************************************************************/

/* HACK FOR IE: to make sure the sub menus show above form controls, we underlay each submenu with an iframe */
ul.MenuBarHorizontal iframe
{
position: absolute;
z-index: 1010;
filter:alpha(opacity:0.1);
}
/* HACK FOR IE: to stabilize appearance of menu items; the slash in float is to keep IE 5.0 from parsing */
@media screen, projection
{
ul.MenuBarHorizontal li.MenuBarItemIE
{
display: inline;
f\loat: left;
background: #FFF;
}
}


Thank you so much. Appreciate it.