index.css

body {
	background-color: #ddd;
	margin: 0;
}

/* header */

.header {
	position: fixed;
	top: 0px;
	background-color: #111;
	color: #eee;
	width: 100%;
	font-family: Georgia, "Times New Roman";
	font-size: 16pt;
	text-align: center;
}

.header ul {
	margin: 0;
	padding: 20px;
}

.header li {
	margin: 0;
	list-style-type: none;
	margin: 0 25px;
	display: inline;
}

.home_icon {
	width: 48px;
	margin: -10px;
	position: absolute;
	top: 17px;
	left: 25px;
}

.header_link:active, .header_link:visited, .header_link:link {
	color: inherit;
	text-decoration: none;
}

.header_submenu {
	font-size: 14pt;
	background-color: #203020;
	display: none;
}

.header_submenu ul {
	margin: 0;
	padding: 20px;
}

.header_submenu li {
	margin: 0;
	list-style-type: none;
	margin: 0 25px;
	display: inline;
}

.header_submenu_link:active, 
.header_submenu_link:visited, 
.header_submenu_link:link {
	color: inherit;
	text-decoration: none;
}

.header_submenu_link:hover {
	color: #55aa55;
}





/* WRAPPER */

.wrapper {
	width: 800px;
	max-width: 90%;
	padding: 50px;
	background-color: #eee;
	margin: 85px auto 0px auto;
}

.wrapper_text_container {
	font-size: 15pt;
	font-family: Georgia, "Times New Roman";
	line-height: 1.5;
	text-align: justify;
}

.wrapper_text_container h1 {
	font-size: 26pt;
	margin-left: 20px;
	text-align: left;
}

.wrapper_text_container h2 {
	font-size: 22pt;
	margin-left: 10px;
	text-align: left;
}

.wrapper_text_container h3 {
	font-size: 18pt;
	text-align: left;
}

.wrapper_text_container li {
	margin: 12px 0;
}

.code {
	background-color: #ccc;
	font-family: Consolas, Monospace, "Courier New";
	padding: 15px;
	font-size: 12pt;
}

.wrapper_text_container td {
	border: 1px solid;
	padding: 10px;
}

.wrapper_text_container table {
	border: 1px solid;
	border-collapse: collapse;
}

.img_right, .img_left {
	width: 220px;
	margin: 25px;
}

.img_right {
	float: right;
}

.img_left {
	float: left;
}

.img_center {
	display: block;
	margin: 25px auto;
}

footer {
	margin-top: 40px;
	background-color: #aaa;
	width: 100%;
	padding: 20px;
	font-size: 14pt;
	font-family: Georgia, "Times New Roman";
	text-align: center;
	color: #666;
}