.full_cover {
	font-size: 2em;
	font-weight: 900;
	overflow: hidden;
	transition: all 0.4s ease-in-out;
}
.full_cover img {margin: 0;}
.arrow_box {
	display: inline-block;
	height: 50px;
	transition: all 0.4s ease-in-out;
}
.arrow_box:hover {
	opacity: 0.5;
	transition: all 0.4s ease-in-out;
}
.full_cover img {vertical-align: middle;}
#close_box {
	display: inline-block;
	margin-right: 15px;
}
.flex {display: flex;}
#close_book, #prev_book, #next_book {
	align-items: center;
	background: none;
	color: white;
	cursor: pointer;
	overflow: hidden;
	position: fixed;
	text-align: center;
	top: 0;
	vertical-align: middle;
}
#close_book {
	font-size: 3em;
	justify-content: right;
	left: 0;
	text-align: right;
	transition: all 0.4s ease-in-out;
	width: 100%;
	z-index: 1002;
}
#close_book:hover {
	opacity: 0.5;
	transition: all 0.4s ease-in-out;
}
#prev_book, #next_book {
	bottom: 0;
	opacity: 1;
	transition: all 0.4s ease-in-out;
	width: 50%;
	z-index: 1001;
}
#prev_book {
	justify-content: left;
	left: 0;
}
#next_book {
	justify-content: right;
	right: 0;
}
#prev_book img {
	margin-left: 30px;
	opacity: 0.5;
}
#next_book img {
	margin-right: 30px;
	opacity: 0.5;
}
#prev_book:hover img, #next_book:hover img {
	opacity: 1;
	transform: scale(1.5);
	transition: all 0.4s ease-in-out;
}