body{
	margin:0em;
	background-color:#cccccc;
	font-size:180%;
}

div.whole_field{
	margin:auto;
	width:950px;
	background-color:#ccccff;

}

div.main_field{
	background-color:#ffffcc;
	padding:0.5em;
}

p{
	margin-top:0.3em;
	margin-bottom:0.3em;
	text-indent:1.0em;
	line-height:1.3;
}

ul{
	margin-top:0.3em;
	margin-bottom:0.3em;
	line-height:1.3;
}