body {
	font: 100% Verdana, Arial, Helvetica, sans-serif;
	background: #000000;
	margin: 0; /* it's good practice to zero the margin and padding of the body element to account for differing browser defaults */
	padding: 0;
	text-align: center; /* this centers the container in IE 5* browsers. The text is then set to the left aligned default in the #container selector */
	color: #000000;
}

body img {
	border-style:none;
}

a:link, a:visited, a:hover {
	color:#0000FF;
	text-decoration: none;
}

a:hover {
	text-decoration: underline;
}

.mainBody #container { 
	width: 44em;  /* this width combined with the padding will create a container that will fit in an 800px browser window if text is left at browser default font sizes */
	background: #FFFFFF;
	padding: 1em 1em 1em 1em;
	margin: 1em auto; /* the auto margins (in conjunction with a width) center the page */
	border: 1px solid #000000;
	text-align: left; /* this overrides the text-align: center on the body element. */
} 
.mainBody #header { 
	background: url(/images/header/gradient.gif) repeat-x;
	background-color:#FFFFFF;
	text-align:center;
	height:12.25em;
	padding: 0;
	border-bottom: 2px solid #9e9e9e;
	margin-bottom: 0.5em;
} 
.mainBody #header h1 {
	margin: 0; /* zeroing the margin of the last element in the #header div will avoid margin collapse - an unexplainable space between divs. If the div has a border around it, this is not necessary as that also avoids the margin collapse */
	padding: 10px 0; /* using padding instead of margin will allow you to keep the element away from the edges of the div */
}

.mainBody #header p {
	font-size:0.5em;
}

/* Tips for mainContent:
1. If you give this #mainContent div a font-size value different than the #sidebar1 div, the margins of the #mainContent div will be based on its font-size and the width of the #sidebar1 div will be based on its font-size. You may wish to adjust the values of these divs.
2. The space between the mainContent and sidebar1 is created with the left margin on the mainContent div.  No matter how much content the sidebar1 div contains, the column space will remain. You can remove this left margin if you want the #mainContent div's text to fill the #sidebar1 space when the content in #sidebar1 ends.
3. To avoid float drop, you may need to test to determine the approximate maximum image/element size since this layout is based on the user's font sizing combined with the values you set. However, if the user has their browser font size set lower than normal, less space will be available in the #mainContent div than you may see on testing.
4. In the Internet Explorer Conditional Comment below, the zoom property is used to give the mainContent "hasLayout." This avoids several IE-specific bugs that may occur.
*/
.mainBody #mainContentBanner {
	text-align: center;
	background-color: #bdbdbd;
	margin: 0 0 0.5em 0; /* the right margin can be given in ems or pixels. It creates the space down the right side of the page. */
} 
.mainBody #mainContent {
	background-color: #bdbdbd;
	padding:0 0.5em 0.5em 0.5em;
	margin: 0 0 0 0; /* the right margin can be given in ems or pixels. It creates the space down the right side of the page. */
} 
.mainBody #footer { 
	margin-top:0.5em;
	border-top: 2px solid #bdbdbd;
	padding: 0.5em 10px; /* this padding matches the left alignment of the elements in the divs that appear above it. */
	background:#FFFFFF;
} 

#links {
	width: 44em;
	margin: 0 auto; /* the auto margins (in conjunction with a width) center the page */
	text-align:center;
	background:#000000;
	color:#FFFFFF;
	padding: 0 0 2em 0;
	font-size:0.6em;
}

#links a:link, #links a:visited, #links a:hover {
	color:#FFFFFF;
	text-decoration: none;
}

#links a:hover {
	text-decoration: underline;
}

/* Miscellaneous classes for reuse */
.fltrt { /* this class can be used to float an element right in your page. The floated element must precede the element it should be next to on the page. */
	float: right;
	margin-left: 8px;
}
.fltlft { /* this class can be used to float an element left in your page */
	float: left;
	margin-right: 8px;
}
.clearfloat { /* this class should be placed on a div or break element and should be the final element before the close of a container that should fully contain a float */
	clear:both;
    height:0;
    font-size: 1px;
    line-height: 0px;
}
<!--[if IE]>
<style type="text/css"> 
/* place css fixes for all versions of IE in this conditional comment */
.mainBody #sidebar1 { padding-top: 30px; }
.mainBody #mainContent { zoom: 1; padding-top: 15px; }
/* the above proprietary zoom property gives IE the hasLayout it needs to avoid several bugs */
</style>
<![endif]-->