.clouds {
	position: absolute;
	top: 0;
	left: 0;
	bottom: 0;
	right: 0;
	width:100%;
	height:100%;
}

[class^="cloud-"] {
	position: absolute;
	right: 120%;
	width:790px;
 	height: 270px;
	background-repeat: no-repeat;
	-moz-background-size: cover;
	-webkit-background-size: cover;
	-o-background-size: cover;
	background-size: cover;
	background: url(../images/parallax/cloud.png);
 
}
 
.cloud-1 {
	top: 30%;
	/*opacity: 0.9;*/
	-webkit-animation: moveclouds 30s linear infinite;
	   -moz-animation: moveclouds 30s linear infinite;
	     -o-animation: moveclouds 30s linear infinite;
	        animation: moveclouds 30s linear infinite;
}

.cloud-2 {
		top: 40%;
		/*opacity: 0.5;*/
		-webkit-transform: scale(0.8);
		-moz-transform: scale(0.8);
		transform: scale(0.8);
		-webkit-animation: moveclouds 45s linear infinite;
		-moz-animation: moveclouds 45s linear infinite;
		-o-animation: moveclouds 45s linear infinite;
		animation: moveclouds 45s linear infinite;
		-webkit-animation-delay: 5s;
		-moz-animation-delay: 5s;
		animation-delay: 5s;
}

.cloud-3 {
	top: 150px;
  opacity: 0.6;
  -webkit-transform: scale(0.6);
	   -moz-transform: scale(0.6);
	        transform: scale(0.6);
	-webkit-animation: moveclouds 40s linear infinite;
	   -moz-animation: moveclouds 40s linear infinite;
	     -o-animation: moveclouds 40s linear infinite;
	        animation: moveclouds 40s linear infinite;
}

.cloud-4 {
	top: 200px;
  opacity: 0.75;
  -webkit-transform: scale(0.75);
	   -moz-transform: scale(0.75);
	        transform: scale(0.75);
	-webkit-animation: moveclouds 26s linear infinite;
	   -moz-animation: moveclouds 26s linear infinite;
	     -o-animation: moveclouds 26s linear infinite;
	        animation: moveclouds 26s linear infinite;
	-webkit-animation-delay: 8s;
     -moz-animation-delay: 8s;
          animation-delay: 8s;
}

@-webkit-keyframes moveclouds {
	0%   { right: -20%; }
	100% { right: 120%; }
}
@-moz-keyframes moveclouds {
	0%   { right: -20%; }
	100% { right: 120%; }
}
@-o-keyframes moveclouds {
	0%   { right: -20%; }
	100% { right: 120%; }
}