     .example2 {
	background: #000000;
	background: -webkit-linear-gradient(180deg, #aa0000 0%, #555500 100%);
	background: -moz-linear-gradient(180deg, #aaaa00 0%, #000000 100%);
	background: linear-gradient(180deg, #ffaa7f 0%, #00007f 100%);
	width: 100%;
	height: 100%;
	bottom: 100%;
	overflow: hidden;	
}

.cuadrados {
	position: absolute;
	top: -15px;
	left: 0;
	width: 100%;
	height: 100%;
	z-index: 0;
	overflow: hidden;
}
.cuadrados li {
	position: absolute;
	list-style: none;
	display: block;
	width: 40px;
	height: 40px;
	
	bottom: -20%;
	-webkit-animation: square 25s infinite linear;
	-moz-animation: square 25s infinite linear;
	animation: square 25s infinite linear;
	
}
.cuadrados li:nth-child(1) {
	left: 10%;
}
.cuadrados li:nth-child(2) {
	background-image: url('../images/logo-normal.webp');
	background-size: contain;
	opacity: 0.5;
	left: 20%;
	width: 80px;
	height: 80px;
	-webkit-animation-delay: 2s;
	-moz-animation-delay: 2s;
	animation-delay: 2s;
	-webkit-animation-duration: 17s;
	-moz-animation-duration: 17s;
	animation-duration: 17s;
}
.cuadrados li:nth-child(3) {
	background-image: url('../images/logo audio_normal_sin_fondo.webp');
	background-size: contain;
	opacity: 0.5;
	left: 25%;
	-webkit-animation-delay: 4s;
	-moz-animation-delay: 4s;
	animation-delay: 4s;	
}
.cuadrados li:nth-child(4) {
	background-image: url('../images/corchea.webp');
	background-size: contain;
	opacity: 0.25;
	left: 40%;
	width: 60px;
	height: 60px;
	-webkit-animation-duration: 22s;
	-moz-animation-duration: 22s;
	animation-duration: 22s;	
}
.cuadrados li:nth-child(5) {
	left: 70%;
}
.cuadrados li:nth-child(6) {
	background-image: url('../images/logo-normal.webp');
	background-size: contain;
	opacity: 0.2;
	left: 80%;
	width: 120px;
	height: 120px;
	-webkit-animation-delay: 3s;
	-moz-animation-delay: 3s;
	animation-delay: 3s;
}
.cuadrados li:nth-child(7) {
	background-image: url('../images/corchea.webp');
	background-size: contain;
	opacity: 0.5;
	left: 32%;
	width: 16px;
	height: 16px;
	-webkit-animation-delay: 7s;
	-moz-animation-delay: 7s;
	animation-delay: 7s;
}
.cuadrados li:nth-child(8) {
	background-image: url('d../images/clave.webp');
	background-size: contain;
	opacity: 0.5;
	left: 55%;
	width: 10px;
	height: 10px;
	-webkit-animation-delay: 15s;
	-moz-animation-delay: 15s;
	animation-delay: 15s;
	-webkit-animation-duration: 40s;
	-moz-animation-duration: 40s;
	animation-duration: 40s;
}
.cuadrados li:nth-child(9) {
	background-image: url('../images/logo-normal.webp');
	background-size: contain;
	opacity: 0.3;
	left: 25%;
	width: 10px;
	height: 10px;
	-webkit-animation-delay: 2s;
	-moz-animation-delay: 2s;
	animation-delay: 2s;
	-webkit-animation-duration: 40s;
	-moz-animation-duration: 40s;
	animation-duration: 40s;	
}
.cuadrados li:nth-child(10) {
	background-image: url('../images/logo audio_normal_sin_fondo.webp');
	background-size: contain;
	opacity: 0.5;
	left: 90%;
	width: 160px;
	height: 160px;
	-webkit-animation-delay: 11s;
	-moz-animation-delay: 11s;
	animation-delay: 11s;
}
.cuadrados li:nth-child(11) {
	background-image: url('../images/logo_editorial.webp');
	background-size: contain;
	opacity: 0.5;
	left: 15%;
	width: 17px;
	height: 17px;
	-webkit-animation-delay: 12s;
	-moz-animation-delay: 12s;
	animation-delay: 12s;
	-webkit-animation-duration: 40s;
	-moz-animation-duration: 40s;
	animation-duration: 40s;	
}
.cuadrados li:nth-child(12) {
	background-image: url('../images/logo-normal.webp');
	background-size: contain;
	opacity: 0.1;
	left: 20%;
	width: 5px;
	height: 5px;
	-webkit-animation-delay: 15s;
	-moz-animation-delay: 15s;
	animation-delay: 15s;
	-webkit-animation-duration: 15s;
	-moz-animation-duration: 15s;
	animation-duration: 15s;	
}
.cuadrados li:nth-child(13) {
	background-image:url('../images/logo audio_normal_sin_fondo.webp');
	background-size: contain;
	opacity: 0.3;
	left: 45%;
	width: 8px;
	height: 8px;
	-webkit-animation-delay: 17s;
	-moz-animation-delay: 17s;
	animation-delay: 17s;
	-webkit-animation-duration: 29s;
	-moz-animation-duration: 29s;
	animation-duration: 29s;
}
.cuadrados li:nth-child(14) {
	background-image: url('../images/logo-normal.webp');
	background-size: contain;
	opacity: 0.35;
	left: 50%;
	width: 120px;
	height: 120px;
	-webkit-animation-delay: 11s;
	-moz-animation-delay: 11s;
	animation-delay: 11s;
	-webkit-animation-duration: 19s;
	-moz-animation-duration: 19s;
	animation-duration: 19s;
}
.cuadrados li:nth-child(15) {	
	background-image: url('../images/clave.webp');
	background-size: contain;
	opacity: 0.5;
	left: 67%;
	width: 50px;
	height: 50px;
	-webkit-animation-delay: 6s;
	-moz-animation-delay: 6s;
	animation-delay: 6s;
	-webkit-animation-duration: 12s;
	-moz-animation-duration: 12s;
	animation-duration: 12s;
}
.cuadrados li:nth-child(16) {
	background-image: url('../images/logo-normal.webp');
	background-size: contain;
	opacity: 0.3;
	left: 75%;
	width: 20px;
	height: 20px;
	-webkit-animation-delay: 1s;
	-moz-animation-delay: 1s;
	animation-delay: 1s;
	-webkit-animation-duration: 25s;
	-moz-animation-duration: 25s;
	animation-duration: 25s;
}
.cuadrados li:nth-child(17) {
	background-image: url('../images/logo audio_normal_sin_fondo.webp');
	background-size: contain;
	opacity: 0.45;
	left: 10%;
	width: 10px;
	height: 10px;
	-webkit-animation-delay: 2s;
	-moz-animation-delay: 2s;
	animation-delay: 2s;
	-webkit-animation-duration: 20s;
	-moz-animation-duration: 20s;
	animation-duration: 20s;
}
.cuadrados li:nth-child(18) {
	background-image: url('../images/logo-editorial.webp');
	background-size: contain;
	opacity: 0.4;
	left: 55%;
	width: 10px;
	height: 10px;
	-webkit-animation-delay: 2s;
	-moz-animation-delay: 2s;
	animation-delay: 2s;
	-webkit-animation-duration: 32s;
	-moz-animation-duration: 32s;
	animation-duration: 32s;
}
.cuadrados li:nth-child(19) {
	background-image: url('../images/logo-normal.webp');
	background-size: contain;
	opacity: 0.4;
	left: 59%;
	width: 10px;
	height: 10px;
	-webkit-animation-delay: 8s;
	-moz-animation-delay: 8s;
	animation-delay: 8s;
	-webkit-animation-duration: 15s;
	-moz-animation-duration: 15s;
	animation-duration: 15s;
}
.cuadrados li:nth-child(20) {
	background-image: url('../images/logo audio_normal_sin_fondo.webp');
	background-size: contain;
	opacity: 0.25;
	left: 5%;
	width: 15px;
	height: 15px;
	-webkit-animation-delay: 3s;
	-moz-animation-delay: 3s;
	animation-delay: 3s;
	-webkit-animation-duration: 10s;
	-moz-animation-duration: 10s;
	animation-duration: 10s;
}


/*
* Animaciones
*/

@-webkit-keyframes square {
	0% {
		-webkit-transform: translateY(0);
		transform: translateY(0);
	}
	100% {
		-webkit-transform: translateY(-100%) rotate(600deg);
		transform: translateY(-100%) rotate(600deg);
	}
}
@-moz-keyframes square {
	0% {
	-moz-transform: translateY(0);
	transform: translateY(0);
}
100% {
	-moz-transform: translateY(-100%) rotate(600deg);
	transform: translateY(-100%) rotate(600deg);
}
}
@keyframes square {
	0% {
		-webkit-transform: translateY(0);
		transform: translateY(0);
	}
	100% {
		-webkit-transform: translateY(-1500px) rotate(600deg);
		transform: translateY(-1500px) rotate(600deg);
	}
}