body {
	background-color: #eeeeee;
	font-family: georgia; arial;
	padding: 30px;
	line-height: 1.5em;
}
.chapter {
	border: 1px solid #555555;
	background-color: #ffffff;
	padding: 20px;
	margin-bottom: 20px;
}
.mycode {
	margin: 10px;
	padding: 10px;
	background-color: #EDFA95;
	font-family: Courier;
	border: 1px dashed #555555;
}
.menu {
	display: inline;
	background-color: #CFD6FF;
	color: #546BFD;
	padding: 2px;
	font-weight: bold;
	border: 1px solid #AFBBFF;
}
.link {
	display: inline;
	background-color: #ffffff;
	color: #8FBF0B;
	padding: 2px;
	font-weight: bold;
	border: 1px solid #8FBF0B;
	text-decoration: underline;
}

.myform {
	display: inline;
	background-color: #ffffff;
	color: #8FBF0B;
	padding: 2px;
	font-weight: bold;
	border: 1px solid #8FBF0B;
}

.icon {
	display: inline;
	background-color: #546BFD;
	color: #ffffff;
	padding: 2px;
	font-weight: bold;
}

.img {
	margin: 20px;
}
.video {
	margin: 15px;
	width: 600px;
}