.cover {
	width:150px;
	margin:5px;
	border:solid 1px green;
}
.element_book {
	padding-top:5px;
}
.element_book_info {
	padding-top:5px;
	vertical-align: top;
}
.element_book_info button{
	background-color:green;
	color:white;
	border: none;
	padding:4;
}