.section{
	font-size: 20pt;
	font-weight: bold;
}
.ordinary {
 	font-size: 12pt;
}
.sign {  
	font-size: 12pt; 
	font-weight: bold;
}
.mainname {  
	font-size: 20pt; 
	font-weight: bold;
}
.authors {  
	font-size: 14pt; 
	font-style: italic;
}
.subname {  
	font-size: 14pt; 
	font-weight: bold;
}

.subsubname {
	font-size: 12 pt;
	font-weight: bold;
}
.content {  
	font-size: 12pt;
	font-weight: normal;
}
.nav {  
}