cssNiceWeather.css

body, html {
    padding: 0;
    margin: 0;
}
.container {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 400px;
    height: 400px;
    margin-left: -200px;
    margin-top: -200px;
    border-radius: 2px;
    box-shadow: 4px 8px 16px 0 rgba(0, 0, 0, .1);
    overflow: hidden;
    background: linear-gradient(#5d3355, #b97079, #a097ab, #fdf090)
}
.sun {
    background: lemonchiffon;
    width: 70px;
    height: 70px;
    border-radius: 70px;
    display: block;
    position: absolute;
    top: 50px;
    left: 100px;
}
.clouds{
    background: #5d3355;
    display: flex;
    width: 100px;
    height: 30px;
    opacity: .8;
    position: absolute;
    top: 60%;
    left: 120%;
}
.clouds .cloud{
    position: relative;
    width: auto;
}
.clouds .cloud:before{
    content: "";
    background: #5d3355;
    width: 30px;
    height: 30px;
    border-radius: 30px;
    display: block;
    position: absolute;
    bottom: 0;
    left: -12px;
}
.clouds .c2:before{
    height: 40px;
    width: 40px;
    border-radius: 40px;
    bottom: 5px;
    left: 2px;
}
.clouds .c3:before{
    height: 40px;
    width: 40px;
    border-radius: 40px;
    bottom: 17px;
    left: 18px;
}
.clouds .c4:before{
    height: 60px;
    width: 60px;
    border-radius: 60px;
    bottom: 12px;
    left: 42px;
}
.clouds .c5:before{
    height: 50px;
    width: 50px;
    border-radius: 50px;
    bottom: 0px;
    left: 75px;
}
.clouds.bigger{
      -webkit-animation: float 12s 0s infinite alternate linear;
          animation: float 12s 0s infinite alternate linear;
}
.clouds.medium{
    top: 42%;
    height: 24px;
    width: 92px;
      -webkit-animation: float 16s 5s infinite alternate linear;
          animation: float 16s 5s infinite alternate linear;
}
.clouds.medium .cloud{
    position: relative;
    width: auto;
}
.clouds.medium .cloud:before{
    height: 24px;
    width: 24px;
    border-radius: 25px;
    bottom: 0;
    left: -12px;
}
.clouds.medium .c2:before{
    height: 35px;
    width: 35px;
    border-radius: 35px;
    bottom: 5px;
    left: 2px;
}
.clouds.medium .c3:before{
    height: 50px;
    width: 50px;
    border-radius: 50px;
    bottom: 4px;
    left: 18px;
}
.clouds.medium .c4:before{
    height: 25px;
    width: 25px;
    border-radius: 25px;
    bottom: 22px;
    left: 58px;
}
.clouds.medium .c5:before{
    height: 25px;
    width: 25px;
    border-radius: 25px;
    bottom: 12px;
    left: 73px;
}
.clouds.medium .c6:before{
    height: 25px;
    width: 25px;
    border-radius: 25px;
    bottom: 0px;
    left: 82px;
}
.clouds.smaller{
    top: 26%;
    height: 18px;
    width: 61px;
    -webkit-animation: float 16s 4s infinite alternate linear;
            animation: float 16s 4s infinite alternate linear;
}
.clouds.smaller .cloud{
    position: relative;
    width: auto;
}
.clouds.smaller .cloud:before{
    height: 18px;
    width: 18px;
    border-radius: 18px;
    bottom: 0;
    left: -10px;
}
.clouds.smaller .c2:before{
    height: 20px;
    width: 20px;
    border-radius: 20px;
    bottom: 11px;
    left: 2px;
}
.clouds.smaller .c3:before{
    height: 35px;
    width: 35px;
    border-radius: 35px;
    bottom: 8px;
    left: 13px;
}
.clouds.smaller .c4:before{
    height: 25px;
    width: 25px;
    border-radius: 25px;
    bottom: 10px;
    left: 35px;
}
.clouds.smaller .c5:before{
    height: 25px;
    width: 25px;
    border-radius: 25px;
    bottom: 0px;
    left: 45px;
}
@-webkit-keyframes float {
  0% {
    -webkit-transform: translateX(0px);
            transform: translateX(0px);
  }
  100% {
    -webkit-transform: translateX(-640px);
            transform: translateX(-640px);
  }
}

@keyframes float {
  0% {
    -webkit-transform: translateX(0px);
            transform: translateX(0px);
  }
  100% {
    -webkit-transform: translateX(-640px);
            transform: translateX(-640px);
  }
}