@page
	{size:A4;
	margin:10%;}
article, abstract, header, example
	{display:block;}
article
	{font-family:"Palatino Linotype", serif;
	counter-reset:equation;}
title, header
	{font-size:18pt;
	margin:1ex 0;
	color:navy;
	page-break-after:avoid;}
abstract
	{font-size:12pt;
	margin:1em 0 1em 2em;}
formula
	{margin-left:1em;}
math, formula
	{font-size:2em;}