.letter {
	font-family: Helvetica, sans-serif;
	font-size: 100px;
	color: #FFFF99;
}

.letter_small {
	font-family: Helvetica, sans-serif;
	font-size: 40px;
	color: #FFFF99;
}


.title {
	font-family: Helvetica, sans-serif;
	font-size: 40px;
	color: #FFFF99;
}

.title_centred {
	font-family: Helvetica, sans-serif;
	font-size: 40px;
	color: #FFFF99;
	text-align: center;
	margin-top: 15px;
	z-index: 1;
	visibility: visible;
}

.issn {
	font-family: Helvetica, sans-serif;
	font-size: 15px;
	color: #FFFF99;
}

.back_link {
	font-family: Helvetica, sans-serif;
	font-size: 15px;
	color: #FFCC66;
	font-style: oblique;
}

.navigation {
	font-family: Trebuchet MS;
	font-size: 18px;
	font-style: normal;
	color: #FF9933;
	text-align: center;
	padding: 3px;
	margin-top: 3px;
	display: block;
	line-height: 2;
	border-bottom-style: solid;
}

.navigation:hover {
	font-family: Trebuchet MS;
	font-size: 19px;
	font-style: normal;
	color: #FFCC33;
	text-align: center;
	padding: 3px;
	margin-top: 3px;
	display: block;
	border-bottom-color: #FF6633;
	border-bottom-style: solid;
}

.menu {
	font-family: "Trebuchet MS";
	font-size: 16px;
	color: #FFFF99;
	line-height: 18px;
	padding: 3px 3px;
	margin: 0px;
	list-style-type: none;
	text-align: left;
}

.menu_par {
	font-family: "Trebuchet MS";
	font-size: 16px;
	color: #FFFF66;
	line-height: 18px;
	padding: 3px 3px;
	margin: 0px;
	list-style-type: none;
	text-align: left;
	text-indent: 20px;
}

.menu_head {
	font-family: "Trebuchet MS";
	font-size: 16px;
	color: #FF6600;
	line-height: 18px;
	padding: 3px 3px;
	margin: 0px;
	list-style-type: none;
	text-align: center;
	display: block;
	border-bottom-style: solid;
	border-bottom-color: #FF9900;
}