body { background-color: white;
        color: black;
        margin-left: 5%;
        margin-right: 5%; }
h1,h2 { text-align: center; 
        padding: 10px;
        color: #800000;
	background-color: transparent; }
h3,h4 { text-align: left; 
        padding: 5px; 
	color: #800000;
	background-color: transparent; }

em { color: #000080; }
strong { color: #000080; }
hr { clear: both; }
/* br { clear: both; } */

div.indent { margin-left: 3em; }

div.center { margin-left: auto; 
	margin-right: auto;
	text-align: left; }

div.rightfig { text-align: center;
	padding: 10px;
	background-color: #eeeeee;
	color: black;
	float: right;
	border-width: 1px;
	border-style: solid; 
	margin: 10px;
	clear: both; }
div.leftfig { text-align: center;
	padding: 10px;
	background-color: #eeeeee;
	color: black;
	float: left;
	border-width: 1px;
	border-style: solid; 
	margin: 10px;
	clear: both; }
div.centerfig { text-align: center;
	margin-left: auto; margin-right: auto;
	padding: 10px;
	background-color: #eeeeee;
	color: black;
	border-width: 1px;
	border-style: solid; 
	margin: 10px;
	clear: both; }
div.mainpoint { margin: 10px 10% 10px 10%;
	background-color: #e0ffff;
	font-style: italic;
	border-width: 1px;
	border-style: solid; 
	color: black; 
	padding: 10px; }
div.eqn { text-align: center; 
	font-style: normal; }
div.back { text-align: right;
	float: right;
	width: 10%;
	font-size: smaller;
	background-color: transparent;
	color: black; 
	clear: both; }
a.back { background-color: #eeeeee;
	padding: 2px; 
	text-decoration: none; }