/**
 * BookBlock v1.0.2
 * http://www.codrops.com
 * Licensed under the MIT license.
 * Copyright 2012, Codrops
 */

.bb-bookblock {
	width: 400px;
	height: 300px;
	position: relative;
	background: #fff;
	z-index: 100;
}

.bb-page {
	width: 50%;
	height: 100%;
	left: 50%;
	position: absolute;
	transform-style: preserve-3d;
	transform-origin: left center;
}

.bb-page > div,
.bb-outer,
.bb-content {
	position: absolute;
	height: 100%;
	top: 0;
	left: 0;
}

.bb-content {
	background: #fff;
}

.bb-inner {
	position: relative;
	width: 100%;
	height: 100%;
}

.bb-overlay,
.bb-outer {
	backface-visibility: hidden;
}

.bb-page > div {
	width: 100%;
	transform-style: preserve-3d;
	backface-visibility: hidden;
}

.bb-back {
	transform: rotateY(-180deg);
}

.bb-outer {
	width: 100%;
	overflow: hidden;
	z-index: 999;
}

.bb-overlay,
.bb-flipoverlay {
	background-color: rgba(0, 0, 0, 0.7);
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	opacity: 0;
	z-index: 1000;
}

.bb-flipoverlay {
	background-color: rgba(0, 0, 0, 0.2);
}

.bb-bookblock > div.bb-page:first-child,
.bb-bookblock > div.bb-page:first-child .bb-back {
	transform: rotateY(180deg);
}

.js .bb-item {
	width: 100%;
	height: 100vh;
	position: absolute;
	top: 0;
	left: 0;
	display: none;
	background: #fff;
	padding-bottom: 70px;
}