html, body {
    position: absolute;

    overflow-x: visible;
    overflow-y: visible;
    background: #121212;
    margin: 0;
    padding: 0; 
}

#sun {
    position: absolute;
    top: 50%;
    left: 50%;
    margin-top: -540px;
    margin-left: -540px;
    height: 1080px;
    width: 1080px;
    border: 1px solid white;
    border-radius: 50%;
    box-shadow: 0 0 75px yellow;
}

#mercury {
    position: absolute;
    top: -22px;
    left: 50%;
    height: 7.8px;
    width: 7.8px;
    margin-left: 10px;
    margin-top: 10px;
    border: 1px solid #666666;
    border-radius: 50%;
    box-shadow: 0 0 25px #666666;
    
          -webkit-animation: year 1s linear infinite;
          -moz-animation: year 1s linear infinite;
          animation: year 1s linear infinite;
}

#mercury-year {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 1296px;
    height: 1296px;
    margin-top: -648px;
    margin-left: -648px;
    border: 1px solid white;
    border-radius: 50%;
    
          -webkit-animation: year 2.5s linear infinite;
          -moz-animation: year 2.5s linear infinite;
          animation: year 2.5s linear infinite;

}

#venus {
    position: absolute;
    top: -22px;
    left: 50%;
    height: 19px;
    width: 19px;
    margin-left: 10px;
    margin-top: 10px;
    border: 1px solid #666666;
    border-radius: 50%;
    box-shadow: 0 0 25px #666666;
    
          -webkit-animation: year 1s linear infinite;
          -moz-animation: year 1s linear infinite;
          animation: year 1s linear infinite;
}

#venus-year {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 1512px;
    height: 1512px;
    margin-top: -756px;
    margin-left: -756px;
    border: 1px solid white;
    border-radius: 50%;
    
          -webkit-animation: year 5.8s linear infinite;
          -moz-animation: year 5.8s linear infinite;
          animation: year 5.8s linear infinite;

}

#earth {
    position: absolute;
    top: -22px;
    left: 50%;
    height: 20px;
    width: 20px;
    margin-left: 10px;
    margin-top: 10px;
    border: 1px solid #666666;
    border-radius: 50%;
    box-shadow: 0 0 25px #666666;
    
          -webkit-animation: year 1s linear infinite;
          -moz-animation: year 1s linear infinite;
          animation: year 1s linear infinite;
}

#earth-year {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 1680px;
    height: 1680px;
    margin-top: -840px;
    margin-left: -840px;
    border: 1px solid white;
    border-radius: 50%;
    
          -webkit-animation: year 10s linear infinite;
          -moz-animation: year 10s linear infinite;
          animation: year 10s linear infinite;

}

#mars {
    position: absolute;
    top: -22px;
    left: 50%;
    height: 10.6px;
    width: 10.6px;
    margin-left: 10px;
    margin-top: 10px;
    border: 1px solid #666666;
    border-radius: 50%;
    box-shadow: 0 0 25px #666666;
    
          -webkit-animation: year 1s linear infinite;
          -moz-animation: year 1s linear infinite;
          animation: year 1s linear infinite;
}

#mars-year {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 1992px;
    height: 1992px;
    margin-top: -996px;
    margin-left: -996px;
    border: 1px solid white;
    border-radius: 50%;
    
          -webkit-animation: year 19.15s linear infinite;
          -moz-animation: year 19.15s linear infinite;
          animation: year 19.15s linear infinite;

}

#jupiter {
    position: absolute;
    top: -22px;
    left: 50%;
    height: 222px;
    width: 222px;
    margin-left: 10px;
    margin-top: 10px;
    border: 1px solid #666666;
    border-radius: 50%;
    box-shadow: 0 0 25px #666666;
    
          -webkit-animation: year 1s linear infinite;
          -moz-animation: year 1s linear infinite;
          animation: year 1s linear infinite;
}

#jupiter-year {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 4192px;
    height: 4192px;
    margin-top: -2096px;
    margin-left: -2096px;
    border: 1px solid white;
    border-radius: 50%;
    
          -webkit-animation: year 118.3s linear infinite;
          -moz-animation: year 118.3s linear infinite;
          animation: year 118.3s linear infinite;

}

#saturn {
    position: absolute;
    top: -22px;
    left: 50%;
    height: 188px;
    width: 470px;
    margin-left: 10px;
    margin-top: 10px;
    border: 1px solid #666666;
    border-radius: 50%;
    box-shadow: 0 0 25px #666666;
    
          -webkit-animation: year 295s linear infinite;
          -moz-animation: year 295s linear infinite;
          animation: year 295s linear infinite;
}

#saturn-year {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 6788px;
    height: 6788px;
    margin-top: -3394px;
    margin-left: -3394px;
    border: 1px solid white;
    border-radius: 50%;
    
          -webkit-animation: year 295s linear infinite;
          -moz-animation: year 295s linear infinite;
          animation: year 295s linear infinite;

}

#uranus {
    position: absolute;
    top: -22px;
    left: 50%;
    height: 80px;
    width: 80px;
    margin-left: 10px;
    margin-top: 10px;
    border: 1px solid #666666;
    border-radius: 50%;
    box-shadow: 0 0 25px #666666;
    
          -webkit-animation: year 1s linear infinite;
          -moz-animation: year 1s linear infinite;
          animation: year 1s linear infinite;
}

#uranus-year {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 12564px;
    height: 12564px;
    margin-top: -6282px;
    margin-left: -6282px;
    border: 1px solid white;
    border-radius: 50%;
    
          -webkit-animation: year 840.83s linear infinite;
          -moz-animation: year 840.83s linear infinite;
          animation: year 840.83s linear infinite;

}

#neptune {
    position: absolute;
    top: -22px;
    left: 50%;
    height: 77.8px;
    width: 77.8px;
    margin-left: 10px;
    margin-top: 10px;
    border: 1px solid #666666;
    border-radius: 50%;
    box-shadow: 0 0 25px #666666;
    
          -webkit-animation: year 1s linear infinite;
          -moz-animation: year 1s linear infinite;
          animation: year 1s linear infinite;
}

#neptune-year {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 19068px;
    height: 19068px;
    margin-top: -9534px;
    margin-left: -9534px;
    border: 1px solid white;
    border-radius: 50%;
    
          -webkit-animation: year 1649.16s linear infinite;
          -moz-animation: year 1649.16s linear infinite;
          animation: year 1649.16s linear infinite;

}

#pluto {
    position: absolute;
    top: -22px;
    left: 50%;
    height: 3.6px;
    width: 3.6px;
    margin-left: 10px;
    margin-top: 10px;
    border: 1px solid #666666;
    border-radius: 50%;
    box-shadow: 0 0 25px #666666;
    
          -webkit-animation: year 1s linear infinite;
          -moz-animation: year 1s linear infinite;
          animation: year 1s linear infinite;
}

#pluto-year {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 24736px;
    height: 24736px;
    margin-top: -12368px;
    margin-left: -12368px;
    border: 1px solid white;
    border-radius: 50%;
    
          -webkit-animation: year 2480.83s linear infinite;
          -moz-animation: year 2480.83s linear infinite;
          animation: year 2480.83s linear infinite;

}
@-webkit-keyframes year {
  100% {
    -webkit-transform: rotate(360deg);
    -moz-transform: rotate(360deg);
    transform: rotate(360deg);
  }
}

@keyframes year {
  100% {
    -webkit-transform: rotate(360deg);
    -moz-transform: rotate(360deg);
    transform: rotate(360deg);
  }
}