#contents .amazon {
	text-align: center;
	clear: both;
	margin-top: 20px;
	margin-bottom: 20px;
	width: 550px;
	margin-right: auto;
	margin-left: auto;
	text-indent: -9999px;
	background-image: url(../../img/subpage/amazon/img19.jpg);
}
#contents .amazon a {
	background-image: url(../../img/subpage/amazon/img19.jpg);
	background-repeat: no-repeat;
	display: block;
	width: 550px;
	height: 83px;
	text-align: center;
	overflow: hidden;
}
#contents  .amazon  a:hover {
	background-image: url(../../img/subpage/amazon/img19_on.jpg);
	background-repeat: no-repeat;
}