/* CSS layout */
body {
	margin: 0;
	padding: 0;
}

#masthead {
}

#top_nav {
}

#container {
	min-width: 600px;
}

#left_col {
	width: 200px;
	float: left;
}

#right_col {
	width: 200px;
	float: right;
}

#page_content {
	margin-left: 200px;
	margin-right: 200px;
	background-color: #66FF66;
}

#footer {
	clear: both;
}
<style type="text/css">

.arrowgreen{
	width: 180px; /*width of menu*/
	border-style: solid solid none solid;
	border-color: #94AA74;
	border-size: 1px;
	border-width: 1px;
}

.arrowgreen ul{
	list-style-type: none;
	margin: 0;
	padding: 0;
}
	
.arrowgreen li a{
	font: bold 12px Verdana, Arial, Helvetica, sans-serif;
	display: block;
	background: transparent url(images-css/arrowblue.gif) 100% 0;
	height: 24px; /*Set to height of bg image- padding within link (ie: 32px - 4px - 4px)*/;
	padding: 4px 0 4px 10px;
	line-height: 24px; /*Set line-height of bg image- padding within link (ie: 32px - 4px - 4px)*/;
	text-decoration: none;
}
	
.arrowgreen li a:link, .arrowgreen li a:visited {
	color: #0000FF;
}

.arrowgreen li a:hover{
	color: #26370A;
	background-position: 100% -32px;
}

	
.arrowgreen li a.selected{
	color: #26370A;
	background-position: 100% -64px;
}

</style>