/* CSS layout */
#masthead {
	border: thick groove #006666;
	font-size: 36pt;
	font-weight: bold;
	font-style: italic;
	color: #006666;
	text-align: center;
	padding: 20px 10px 20px 10px;
	margin: 0px 10px 5px 10px;
}
#top_nav {
	font-size: large;
	font-weight: bold;
	text-align: center;
	padding-right: 10px;
	padding-left: 10px;
	margin-right: 10px;
	margin-left: 10px;
	border-bottom-style: groove;
	border-bottom-width: thick;
	border-bottom-color: #006666;
	font-family: "Times New Roman", Times, serif;
	color: #006666;
}
#page_content {
	font-size: large;
	padding-right: 10px;
	padding-left: 10px;
	margin-right: 10px;
	margin-left: 10px;
	font-family: Arial, Helvetica, sans-serif;
	text-align: center;
	color: #000000;
}
#footer {
	font-size: medium;
	font-weight: bold;
	text-align: center;
	border-top-style: groove;
	border-bottom-style: groove;
	border-top-width: thick;
	border-bottom-width: thick;
	border-top-color: #006666;
	border-bottom-color: #006666;
	padding-right: 10px;
	padding-left: 10px;
	margin-right: 10px;
	margin-left: 10px;
	clear: both;
	font-family: "Times New Roman", Times, serif;
	color: #006666;
}
<style type="text/css">
.txt_16pt {
	font-size: 16pt;
	font-weight: bold;
}
.txt_15pt {
	font-size: 15pt;
	font-weight: bold;
}
.blue_txt {
	color: #0000FF;
}
.xsmall_txt {
	font-size: x-small;
}
.lg_blue {
	color: #0000FF;
	font-size: x-large;
}
.green_txt {
	font-size: x-large;
	color: #006666;
}
.center {
	text-align: center;
}
.underline {
	text-decoration: underline;
}
.small_ctr {
	font-size: small;
	font-weight: 900;
	text-align: center;
	color: #006666;
}
.txt_18pt {
	font-size: 18pt;
	font-weight: bold;
}
.small_txt {
	font-size: small;
}
a {
	color: #006666;
}
a:visited {
	color: #999999;
}
a:hover {
	color: #000000;
}
</style>