#dv_left {
	float: left;
	width: 120px;
	padding-left: 10px;
	text-align: center;
}
#dv_content {
	margin-left: 120px;
	padding: 10px;
}
#dv_footer {
	padding-left: 20px;
}
	
@media screen and (max-width: 720px) {
	ul, ol {
		padding-left: 20px;
	}
	#dv_left {
		display: none;
	}
	#dv_content {
		margin-left: 0px;
		padding: 5px;
	}
}