body {
	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: #0;
	font-family: Verdana, Arial, Helvetica, sans-serif;
	font-size: 100%;
	background-color: #4c4c4c;
}
.oneColElsCtr #container {
	width: 700px;
	height: 450px;
	margin: 10% auto; /* the auto margins (in conjunction with a width) center the page */
	border: 1px solid #CCCCCC;
	text-align: left; /* this overrides the text-align: center on the body element. */
}
.oneColElsCtr #mainContent {
	padding-top: 30%;
	padding-left: 120px;
}

.tracker { 
	width: 400px; 
	height: 200px; 
	overflow:hidden; 
	visibility: hidden; 
	position:absolute; 
	top:0px; 
	left:0px;  
}