div[data-sg-id="elem-book"] {
	width: 1080px;
 	height: 543px;
 	margin: 0 auto;
}
.page {	
	background-repeat: no-repeat;
}
.page.odd{
	background-position: left center;
}
.page.even{
	background-position: right center;
}
.hard.page.p1{
	background-image: url('../img/intro/S_G10_U04_L04maferecursos-01.png');
    background-color: #8C8C8C;
}
.page.p2{
	background-image: url('../img/intro/S_G10_U04_L04maferecursos-02.png');
}
.page.p3{
	background-image: url('../img/intro/S_G10_U04_L04maferecursos-25.png');
}
.page.p4{
	background-image: url('../img/intro/S_G10_U04_L04maferecursos-26.png');
}
.page.p5{
	background-image: url('../img/intro/S_G10_U04_L04maferecursos-27.png');
}
.page.p6{
	background-image: url('../img/intro/S_G10_U04_L04maferecursos-28.png');
}
.page.p7{
	background-image: url('../img/intro/S_G10_U04_L04maferecursos-29.png');
}
.page.p8{
	background-image: url('../img/intro/S_G10_U04_L04maferecursos-30.png');
}
.page.p9{
	background-image: url('../img/intro/S_G10_U04_L04maferecursos-31.png');
}
.page.p10{
	background-image: url('../img/intro/S_G10_U04_L04maferecursos-32.png');
}
.page.p11{
	background-image: url('../img/intro/S_G10_U04_L04maferecursos-33.png');
	background-color: white;
}
.page.p12{
	background-image: url('../img/intro/S_G10_U04_L04maferecursos-34.png');
}
.page.p13{
	background-image: url('../img/intro/S_G10_U04_L04maferecursos-35.png');
}
.page.p14{
	background-image: url('../img/intro/S_G10_U04_L04maferecursos-36.png');
}
.page.p15{
	background-image: url('../img/intro/S_G10_U04_L04maferecursos-37.png');
	background-color: white;
}
.page.p16{
	background-image: url('../img/intro/S_G10_U04_L04maferecursos-38.png');
}
.page.p17{
	background-image: url('../img/intro/S_G10_U04_L04maferecursos-39.png');
}
.page.p18{
	background-image: url('../img/intro/S_G10_U04_L04maferecursos-40.png');
}
.page.p19{
	background-image: url('../img/intro/S_G10_U04_L04maferecursos-41.png');
}
.page.hard.p20{
  	background-image: url('../img/intro/S_G10_U04_L04maferecursos-01.png');
    background-color: #8C8C8C;
}
button.previous-button,
button.next-button {
	height: 31px;
	width: 27px;
	border: none;
	background: transparent;
	position: relative;	
	top: 250px;
	z-index: 10000;
	background-position: center;
	background-repeat: no-repeat;
	background-image: url('../img/S_G10_U02_L07_boton.png');
}
button.previous-button {
	left: -50px;
	-webkit-transform: rotate(180deg);
	-moz-transform: rotate(180deg);
	transform: rotate(180deg);
}
button.previous-button:hover{
	-moz-transform: rotate(180deg) scale(1.1);
	-webkit-transform: rotate(180deg) scale(1.1);
	transform: rotate(180deg) scale(1.1);
}
button.next-button {
	left: 1080px;
}
button:focus {
	outline:0;
}