* {
	margin: 0px;
	padding: 0px;
}

body {
	background-color: #ffffff;
	font-family: Verdana, Arial, Helvetica, sans-serif;
	font-size: 14px;
}

#header_div {
	position: relative;
	z-index: 1;
	width: 750px; 
	height: 145px;
	margin-top: 27px;
	margin-left: auto;
	margin-right: auto;
	border-style: outset; 
	border-width: 5px;
}

#header_div img {
	border: none;
}

#back_button {
	display: block;
	margin-top: 10px;
	margin-right: auto;
	margin-left: auto;
	border: none;
}

#nav_div {
	position: relative;
	z-index: 2;
	width: 704px; 
   	height: 24px;
	margin-top: -15px;
	margin-left: auto;
	margin-right: auto;
	background-color:#ffffff;
	border-style: outset;
	border-width: 3px;
	text-align: center;
}

#nav_div img {
	border: none;
	margin-top: 2px;
}

#heading {
	margin-top: 50px;
	text-align: center;
	font-family: "Times New Roman", serif;
	color: #000000; 
	font-weight: bold; 
	font-size: 25px;
}

#gallery {
	width: 900px; 
	height: 600px;
	margin-top: 30px;
	margin-left: auto;
	margin-right: auto;
	background-color: #E5E5E5;
	border-style: outset; 
	border-width: 10px;
	text-align: center;
}

#footer_div {
	width: 715px; 
	height: 65px;
	margin-top: 75px;
	margin-left: auto;
	margin-right: auto;
	background-color: #E5E5E5;
	text-align: center;
}

#footer_div img {
	border: none;
}