.left_column {
	position: absolute;
	top: 1em; 
	left: 5px;
	width: 20em;
	position: fixed;
}

.right_column {
	position: absolute;
	top: 0px; 
	left: 0px;
	background: #dddddd;
	margin-left: 22em;
	margin-top: 1em;
	padding-left: 1em;
	padding-right: 1em;
	margin-right: 1em;
}