<style>

body { 
	font-size: 10pt; 
	font-family: verdana,arial,sans-serif 
}

body { 
	background : gray 
}
div.main { 
	margin: 20px 6%; 
	border: 1px solid black; 
	padding: 40px; 
	background : white;
}

h1 { 
	border:1px solid black; 
	width: 80%; 
	margin: auto;
	background-color: rgb(255, 204, 51); 
	text-align:center;
	font-size:large;
	padding:10px
}
	
h2,h3 { 
	margin-top: 10px; 
	font-size: 120%; 
	font-weight: bold;  
}

img { margin: 20px}

pre { font-size: 80%; margin-left: 30px; color:red }


div.chapterTitle {
	width: 205px;
        margin-top: 10px;
        font-size: 120%;
	text-align: center;
	border-color: black;
	border-style: solid;
	border-width: thin;
	background-color: rgb(255, 204, 51);
	background-repeat: repeat-y;
	color: black;        
	padding: 5px 0px 5px 0px;
	display: block;
        margin: 10px 15px 10px 15px;
        width: 75%; 
        margin-left: auto; 
        margin-right: auto;
}

div.SubChapterTitle {
	font-size: 120%;
	font-weight: bold;
	border-color: black;
	
	
       
}


img { 
	margin: 20px;
	text-align:center;
}

ul.revision { 
	list-style-type: circle;
}

a:link { 
	color: rgb(0, 128, 0);
	text-decoration: underline;
}

a:active { 
	color: rgb(0, 128, 0);
	text-decoration: underline;
}

a:visited { 
	color: rgb(0, 128, 0);
	text-decoration: underline;
}
a:hover { 
	color: rgb(255, 0, 0);
	text-decoration: none;
}


</style>
