.mainCloudContainer{position:absolute;z-index:0;left:110vw}
.cloud{width:350px;height:120px;background:#fff;background:linear-gradient(top,#fff 100%);background:-webkit-linear-gradient(top,#fff 100%);background:-moz-linear-gradient(top,#fff 100%);background:-ms-linear-gradient(top,#fff 100%);background:-o-linear-gradient(top,#fff 100%);border-radius:100px;-webkit-border-radius:100px;-moz-border-radius:100px;margin:120px auto 20px;z-index:1;transition:ease 1s;position:absolute}
.size1{-webkit-transform:scale(0.3);-moz-transform:scale(0.3);transform:scale(0.3)}
.size2{-webkit-transform:scale(0.375);-moz-transform:scale(0.375);transform:scale(0.375)}
.size3{-webkit-transform:scale(0.45);-moz-transform:scale(0.45);transform:scale(0.45)}
.size4{-webkit-transform:scale(0.6);-moz-transform:scale(0.6);transform:scale(0.6)}
.size5{-webkit-transform:scale(0.75);-moz-transform:scale(0.75);transform:scale(0.75)}
.size6{-webkit-transform:scale(0.8);-moz-transform:scale(0.8);transform:scale(0.8)}
.cloud:after,.cloud:before{content:'';position:absolute;background:#fff;z-index:-1}
.cloud:after{width:100px;height:100px;top:-50px;left:50px;border-radius:100px;-webkit-border-radius:100px;-moz-border-radius:100px}
.cloud:before{width:180px;height:180px;top:-90px;right:50px;border-radius:200px;-webkit-border-radius:200px;-moz-border-radius:200px}
.container-size1{animation:moveclouds 22.5s linear infinite}
.container-size2{animation:moveclouds 30s linear infinite}
.container-size3{animation:moveclouds 20s linear infinite}
.container-size4{animation:moveclouds 35s linear infinite}
.container-size5{animation:moveclouds 25s linear infinite}
.container-size6{animation:moveclouds 40s linear infinite}
@keyframes moveclouds{0{transform:translateX(100vw)}
100%{transform:translateX(-170vw)}
}
@-webkit-keyframes moveclouds{0{transform:translateX(100vw)}
100%{transform:translateX(-170vw)}
}
@-moz-keyframes moveclouds{0{transform:translateX(100vw)}
100%{transform:translateX(-170vw)}
}
@-o-keyframes moveclouds{0{transform:translateX(100vw)}
100%{transform:translateX(-170vw)}
}