body { 
margin-left: 10%; 
margin-right: 10%; 
color: black; background: white;
font-family: sans-serif;
background-image: url("book.jpg");
}

pre { font-family: monospace; }

h1,h2,h3,h4,h5,p,ul { font-family: sans-serif; }

table {
	/* margin-left: -4%; */
	font-family: sans-serif;
	background: white;
	border-width: 2px;
	border-color: white;
}
th { font-family: sans-serif; background: rgb(204, 204, 153) }
td { font-family: sans-serif; background: rgb(255, 255, 153) }

div.box {
background: rgb(204,204,255);
padding: 0.5em;
border: solid;
border-width: thin;
width: 100%
}