body, table.footer, table.header
{
	background-image: url("../image/marble.gif");
}
p.observation
{
	text-align: center;
	font-size: 12pt;
}
p.observationex
{
	text-align: center;
	font-size: 12pt;
	font-family: Times, Times New, serif;
}
p.definition
{
	text-align: justify
}
p.preface
{
	font-style: italic;
	text-align: justify
}
p.beware
{
	text-align: center;
	font-weight: bold;
}
p.see
{
	text-align: center;
	font-size: 12pt;
	font-family: Times, Times New, serif;
}
p.exercise
{
	text-align: justify;
	font-size: 12pt;
	font-family: Times, Times New, serif;
}