.container {
  width: 950px;
  margin: auto;
  overflow: hidden;
}



@keyframes fadein {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@-webkit-keyframes fadein {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}


/*===   ANIMATION CLASS ====*/

#clouds {
  padding-top: 73px;
  /*height: 272px;*/
}

/*Time to finalise the cloud shape*/
.cloud {
  width: 200px;
  height: 60px;
  background: #fff;

  border-radius: 200px;
  -moz-border-radius: 200px;
  -webkit-border-radius: 200px;

  position: relative;
  animation: fadein 2s;
}

.cloud:before,
.cloud:after {
  content: "";
  position: absolute;
  background: #fff;
  width: 100px;
  height: 80px;
  position: absolute;
  top: -15px;
  left: 10px;

  border-radius: 100px;
  -moz-border-radius: 100px;
  -webkit-border-radius: 100px;

  -webkit-transform: rotate(30deg);
  transform: rotate(30deg);
  -moz-transform: rotate(30deg);
}

.cloud:after {
  width: 120px;
  height: 120px;
  top: -55px;
  left: auto;
  right: 15px;
}

/*Time to animate*/
.x1 {
  -webkit-animation: moveclouds 15s linear infinite;
  -moz-animation: moveclouds 15s linear infinite;
  -o-animation: moveclouds 15s linear infinite;
}

/*variable speed, opacity, and position of clouds for realistic effect*/
.x2 {
  left: 200px;

  -webkit-transform: scale(0.6);
  -moz-transform: scale(0.6);
  transform: scale(0.6);
  opacity: 0.6; /*opacity proportional to the size*/

  /*Speed will also be proportional to the size and opacity*/
  /*More the speed. Less the time in 's' = seconds*/
  -webkit-animation: moveclouds 25s linear infinite;
  -moz-animation: moveclouds 25s linear infinite;
  -o-animation: moveclouds 25s linear infinite;
}

.x3 {
  left: -250px;
  top: -200px;

  -webkit-transform: scale(0.8);
  -moz-transform: scale(0.8);
  transform: scale(0.8);
  opacity: 0.8; /*opacity proportional to the size*/

  -webkit-animation: moveclouds 20s linear infinite;
  -moz-animation: moveclouds 20s linear infinite;
  -o-animation: moveclouds 20s linear infinite;
}

.x4 {
  left: 470px;
  top: -250px;

  -webkit-transform: scale(0.75);
  -moz-transform: scale(0.75);
  transform: scale(0.75);
  opacity: 0.75; /*opacity proportional to the size*/

  -webkit-animation: moveclouds 18s linear infinite;
  -moz-animation: moveclouds 18s linear infinite;
  -o-animation: moveclouds 18s linear infinite;
}

.x5 {
  left: -150px;
  top: -150px;

  -webkit-transform: scale(0.8);
  -moz-transform: scale(0.8);
  transform: scale(0.8);
  opacity: 0.8; /*opacity proportional to the size*/

  -webkit-animation: moveclouds 20s linear infinite;
  -moz-animation: moveclouds 20s linear infinite;
  -o-animation: moveclouds 20s linear infinite;
}

@-webkit-keyframes moveclouds {
 0% {
  opacity: 1;
    margin-left: 1500px;
  }
  100% {
	opacity: 0;
    margin-left: -1500px;
  }
}
@0% {
  opacity: 1;
    margin-left: 1500px;
  }
  100% {
	opacity: 0;
    margin-left: -1500px;
  }
}
@-o-keyframes moveclouds {
  0% {
  opacity: 1;
    margin-left: 1500px;
  }
  100% {
	opacity: 0;
    margin-left: -1500px;
  }
}

/*===   ANIMATION CLASS ====*/