h1 {
	margin-top: 1em;
	border-top: #66cc66 4px double;
	border-bottom: #66cc66 4px double;
	padding: .5ex .5ex .5ex .5ex;
}

h2 {
	margin-top: 3em;
	border-top: #66cc66 3px double;
	border-bottom: #66cc66 3px double;
	padding: .5ex .5ex .5ex .5ex;
}

h3 {
	margin-top: 3em;
	border-bottom: #66cc66 2px double;
	padding: .5ex .5ex .5ex .5ex;
}

h4 {
	margin-top: 2em;
	border-left: #66cc66 4px solid;
	padding: .5ex .5ex .5ex .5ex;
}

pre {
	border: #555555 3px double;
	padding: 1ex 1ex 1ex 1ex;
}