#bukken {
	background-image: url(images_top/osagasi.gif);
	background-repeat: no-repeat;
	background-position: left top;
	width: 579px;
	padding-left: 120px;
	padding-top: 40px;
	padding-bottom: 10px;
}
.image_left {
	float: left;
}
.image_right {
	float: right;
}
.topic_title {
	margin-top: 5px;
	margin-bottom: 5px;
}