.custom-background {
  background-image: url('../BACKGROUND/EL4-12.png');
  background-size: 100%;
  background-repeat: no-repeat;
  background-position: center;
}

/* EL4-PAGE 12 FLASH */
#pel0412f1{z-index: 14;}
#pel0412f2{z-index: 13;}
#pel0412f3{z-index: 12;}
#pel0412f4{z-index: 11;}
#pel0412f5{z-index: 10;}
#pel0412f6{z-index: 9;}
#pel0412f7{z-index: 8;}
#pel0412f8{z-index: 7;}
#pel0412f9{z-index: 6;}
#pel0412f10{z-index: 5;}
#pel0412f11{z-index: 4;}
#pel0412f12{z-index: 3;}
#pel0412f13{z-index: 2;}
#pel0412f14{z-index: 1;}

#el0412f1:checked ~ .flip-book #pel0412f1{transform: rotateY(-180deg);z-index: 1;}
#el0412f2:checked ~ .flip-book #pel0412f2{transform: rotateY(-180deg);z-index: 2;}
#el0412f3:checked ~ .flip-book #pel0412f3{transform: rotateY(-180deg);z-index: 3;}
#el0412f4:checked ~ .flip-book #pel0412f4{transform: rotateY(-180deg);z-index: 4;}
#el0412f5:checked ~ .flip-book #pel0412f5{transform: rotateY(-180deg);z-index: 5;}
#el0412f6:checked ~ .flip-book #pel0412f6{transform: rotateY(-180deg);z-index: 6;}
#el0412f7:checked ~ .flip-book #pel0412f7{transform: rotateY(-180deg);z-index: 7;}
#el0412f8:checked ~ .flip-book #pel0412f8{transform: rotateY(-180deg);z-index: 8;}
#el0412f9:checked ~ .flip-book #pel0412f9{transform: rotateY(-180deg);z-index: 9;}
#el0412f10:checked ~ .flip-book #pel0412f10{transform: rotateY(-180deg);z-index: 10;}
#el0412f11:checked ~ .flip-book #pel0412f11{transform: rotateY(-180deg);z-index: 11;}
#el0412f12:checked ~ .flip-book #pel0412f12{transform: rotateY(-180deg);z-index: 12;}
#el0412f13:checked ~ .flip-book #pel0412f13{transform: rotateY(-180deg);z-index: 13;}
#el0412f14:checked ~ .flip-book #pel0412f14{transform: rotateY(-180deg);z-index: 14;}

/*EL4-12 CON SECTION */
#pel0412c1{z-index: 15;}
#pel0412c2{z-index: 14;}
#pel0412c3{z-index: 13;}
#pel0412c4{z-index: 12;}
#pel0412c5{z-index: 11;}
#pel0412c6{z-index: 10;}
#pel0412c7{z-index: 9;}
#pel0412c8{z-index: 8;}
#pel0412c9{z-index: 7;}
#pel0412c10{z-index: 6;}
#pel0412c11{z-index: 5;}
#pel0412c12{z-index: 4;}
#pel0412c13{z-index: 3;}
#pel0412c14{z-index: 2;}
#pel0412c15{z-index: 1;}

#el0412c1:checked ~ .flip-book #pel0412c1{transform: rotateY(-180deg);z-index: 1;}
#el0412c2:checked ~ .flip-book #pel0412c2{transform: rotateY(-180deg);z-index: 2;}	
#el0412c3:checked ~ .flip-book #pel0412c3{transform: rotateY(-180deg);z-index: 3;}	
#el0412c4:checked ~ .flip-book #pel0412c4{transform: rotateY(-180deg);z-index: 4;}
#el0412c5:checked ~ .flip-book #pel0412c5{transform: rotateY(-180deg);z-index: 5;}
#el0412c6:checked ~ .flip-book #pel0412c6{transform: rotateY(-180deg);z-index: 6;}
#el0412c7:checked ~ .flip-book #pel0412c7{transform: rotateY(-180deg);z-index: 7;}
#el0412c8:checked ~ .flip-book #pel0412c8{transform: rotateY(-180deg);z-index: 8;}
#el0412c9:checked ~ .flip-book #pel0412c9{transform: rotateY(-180deg);z-index: 9;}
#el0412c10:checked ~ .flip-book #pel0412c10{transform: rotateY(-180deg);z-index: 10;}
#el0412c11:checked ~ .flip-book #pel0412c11{transform: rotateY(-180deg);z-index: 11;}
#el0412c12:checked ~ .flip-book #pel0412c12{transform: rotateY(-180deg);z-index: 12;}
#el0412c13:checked ~ .flip-book #pel0412c13{transform: rotateY(-180deg);z-index: 13;}
#el0412c14:checked ~ .flip-book #pel0412c14{transform: rotateY(-180deg);z-index: 14;}
#el0412c15:checked ~ .flip-book #pel0412c15{transform: rotateY(-180deg);z-index: 15;}

/*EL4-12 TEST SECTION */
#pel0412t1{z-index: 15;}
#pel0412t2{z-index: 14;}
#pel0412t3{z-index: 13;}
#pel0412t4{z-index: 12;}
#pel0412t5{z-index: 11;}
#pel0412t6{z-index: 10;}
#pel0412t7{z-index: 9;}
#pel0412t8{z-index: 8;}
#pel0412t9{z-index: 7;}
#pel0412t10{z-index: 6;}
#pel0412t11{z-index: 5;}
#pel0412t12{z-index: 4;}
#pel0412t13{z-index: 3;}
#pel0412t14{z-index: 2;}
#pel0412t15{z-index: 1;}

#el0412t1:checked ~ .flip-book #pel0412t1{transform: rotateY(-180deg);z-index: 1;}
#el0412t2:checked ~ .flip-book #pel0412t2{transform: rotateY(-180deg);z-index: 2;}	
#el0412t3:checked ~ .flip-book #pel0412t3{transform: rotateY(-180deg);z-index: 3;}	
#el0412t4:checked ~ .flip-book #pel0412t4{transform: rotateY(-180deg);z-index: 4;}
#el0412t5:checked ~ .flip-book #pel0412t5{transform: rotateY(-180deg);z-index: 5;}
#el0412t6:checked ~ .flip-book #pel0412t6{transform: rotateY(-180deg);z-index: 6;}
#el0412t7:checked ~ .flip-book #pel0412t7{transform: rotateY(-180deg);z-index: 7;}
#el0412t8:checked ~ .flip-book #pel0412t8{transform: rotateY(-180deg);z-index: 8;}
#el0412t9:checked ~ .flip-book #pel0412t9{transform: rotateY(-180deg);z-index: 9;}
#el0412t10:checked ~ .flip-book #pel0412t10{transform: rotateY(-180deg);z-index: 10;}
#el0412t11:checked ~ .flip-book #pel0412t11{transform: rotateY(-180deg);z-index: 11;}
#el0412t12:checked ~ .flip-book #pel0412t12{transform: rotateY(-180deg);z-index: 12;}
#el0412t13:checked ~ .flip-book #pel0412t13{transform: rotateY(-180deg);z-index: 13;}
#el0412t14:checked ~ .flip-book #pel0412t14{transform: rotateY(-180deg);z-index: 14;}
#el0412t15:checked ~ .flip-book #pel0412t15{transform: rotateY(-180deg);z-index: 15;}

/*EL4-12 ADD SECTION */
#pel0412add1{z-index: 14;}
#pel0412add2{z-index: 13;}
#pel0412add3{z-index: 12;}
#pel0412add4{z-index: 11;}
#pel0412add5{z-index: 10;}
#pel0412add6{z-index: 9;}
#pel0412add7{z-index: 8;}
#pel0412add8{z-index: 7;}
#pel0412add9{z-index: 6;}
#pel0412add10{z-index: 5;}
#pel0412add11{z-index: 4;}
#pel0412add12{z-index: 3;}
#pel0412add13{z-index: 2;}
#pel0412add14{z-index: 1;}

#el0412add1:checked ~ .flip-book #pel0412add1{transform: rotateY(-180deg);z-index: 1;}
#el0412add2:checked ~ .flip-book #pel0412add2{transform: rotateY(-180deg);z-index: 2;}	
#el0412add3:checked ~ .flip-book #pel0412add3{transform: rotateY(-180deg);z-index: 3;}	
#el0412add4:checked ~ .flip-book #pel0412add4{transform: rotateY(-180deg);z-index: 4;}
#el0412add5:checked ~ .flip-book #pel0412add5{transform: rotateY(-180deg);z-index: 5;}
#el0412add6:checked ~ .flip-book #pel0412add6{transform: rotateY(-180deg);z-index: 6;}
#el0412add7:checked ~ .flip-book #pel0412add7{transform: rotateY(-180deg);z-index: 7;}
#el0412add8:checked ~ .flip-book #pel0412add8{transform: rotateY(-180deg);z-index: 8;}
#el0412add9:checked ~ .flip-book #pel0412add9{transform: rotateY(-180deg);z-index: 9;}
#el0412add10:checked ~ .flip-book #pel0412add10{transform: rotateY(-180deg);z-index: 10;}
#el0412add11:checked ~ .flip-book #pel0412add11{transform: rotateY(-180deg);z-index: 11;}
#el0412add12:checked ~ .flip-book #pel0412add12{transform: rotateY(-180deg);z-index: 12;}
#el0412add13:checked ~ .flip-book #pel0412add13{transform: rotateY(-180deg);z-index: 13;}
#el0412add14:checked ~ .flip-book #pel0412add14{transform: rotateY(-180deg);z-index: 14;}

/*EL4-12 MORE SECTION */
#pel0412more1{z-index: 14;}
#pel0412more2{z-index: 13;}
#pel0412more3{z-index: 12;}
#pel0412more4{z-index: 11;}
#pel0412more5{z-index: 10;}
#pel0412more6{z-index: 9;}
#pel0412more7{z-index: 8;}
#pel0412more8{z-index: 7;}
#pel0412more9{z-index: 6;}
#pel0412more10{z-index: 5;}
#pel0412more11{z-index: 4;}
#pel0412more12{z-index: 3;}
#pel0412more13{z-index: 2;}
#pel0412more14{z-index: 1;}

#el0412more1:checked ~ .flip-book #pel0412more1{transform: rotateY(-180deg);z-index: 1;}
#el0412more2:checked ~ .flip-book #pel0412more2{transform: rotateY(-180deg);z-index: 2;}	
#el0412more3:checked ~ .flip-book #pel0412more3{transform: rotateY(-180deg);z-index: 3;}	
#el0412more4:checked ~ .flip-book #pel0412more4{transform: rotateY(-180deg);z-index: 4;}
#el0412more5:checked ~ .flip-book #pel0412more5{transform: rotateY(-180deg);z-index: 5;}
#el0412more6:checked ~ .flip-book #pel0412more6{transform: rotateY(-180deg);z-index: 6;}
#el0412more7:checked ~ .flip-book #pel0412more7{transform: rotateY(-180deg);z-index: 7;}
#el0412more8:checked ~ .flip-book #pel0412more8{transform: rotateY(-180deg);z-index: 8;}
#el0412more9:checked ~ .flip-book #pel0412more9{transform: rotateY(-180deg);z-index: 9;}
#el0412more10:checked ~ .flip-book #pel0412more10{transform: rotateY(-180deg);z-index: 10;}
#el0412more11:checked ~ .flip-book #pel0412more11{transform: rotateY(-180deg);z-index: 11;}
#el0412more12:checked ~ .flip-book #pel0412more12{transform: rotateY(-180deg);z-index: 12;}
#el0412more13:checked ~ .flip-book #pel0412more13{transform: rotateY(-180deg);z-index: 13;}
#el0412more14:checked ~ .flip-book #pel0412more14{transform: rotateY(-180deg);z-index: 14;}