div {
	margin: auto;
	color: black;
	text-align: left;
}

div.main {
	width: 800px;
}

div.letter_head {
	text-align: right;
	font-weight: bold;
}

span.red {
	color: red;
	font-weight: bold;
}

span.blue {
	color: blue;
	font-weight: bold;
}

span.black {
	font-weight: bold;
}

span.green {
	color: green;
}