html, body {
	height: 100%;
}
body {
	margin: 0;
}
.section {
	background: url('../img/bg1.jpg') no-repeat fixed 50% 0 transparent;
	min-height: 100%;
	box-shadow: 0 2px 5px #000;
	overflow: hidden;
}
.section.bg2 {
	background-image: url('../img/bg2.png');
}
.section.bg3 {
	background-image: url('../img/bg3.jpg');
}
.section.bg4 {
	background-image: url('../img/bg4.png');
}
.texto {
	width: 50%;
	margin: 10% auto 0;
	text-align: center;
	color: #fff;
	text-shadow: 1px 1px 2px #000;
	font-family: Georgia, Arial, Helvetica, sans-serif;
	position: relative;
}
.cloud {
	position: absolute;
	width: 125px;
	height: 75px;
	background: radial-gradient(circle 50px at 25px 30px, #FFF 50%, transparent 0%),
				radial-gradient(circle 50px at 50px 25px, #FFF 50%, transparent 0%),
				radial-gradient(circle 50px at 75px 25px, #FFF 50%, transparent 0%),
				radial-gradient(circle 50px at 100px 30px, #FFF 50%, transparent 0%),
				radial-gradient(circle 50px at 25px 45px, #FFF 50%, transparent 0%),
				radial-gradient(circle 50px at 50px 50px, #FFF 50%, transparent 0%),
				radial-gradient(circle 50px at 75px 50px, #FFF 50%, transparent 0%),
				radial-gradient(circle 50px at 100px 45px, #FFF 50%, transparent 0%);
}