planetstyle.css

html, body {
    /* The universe takes up all available space */
    width: 100%;
    height: 100%;
    
    /* The universe is black */
    background-color: black;
}

/* no longer in use */

/*
#back {
    position: absolute;
}
*/

#sun {
    position: absolute;
    /* Positions the top-left corner of the image to be *
    /* in the middle of the box */
    top: 50%;
    left: 50%;
    
    /* Play with these numbers to see what it does */
    height:200px;
    width: 200px;
    margin-top: -100px; 
    margin-left: -100px;
    
    border-color: orange;
    border-width: 8px;
    border-style: transparent;
    border-radius: 50%;

    box-shadow: 0 0 128px red;
}

#earth {
    position: absolute;
    top: 0;
    left: 50%;

    height: 50px;
    width: 50px;
    margin-left: -25px;
    margin-top: -25px;
    
    border-color: green;
    border-width: 4px;
    border-style: transparent;
    border-radius: 50%;
}

#earth-orbit {
    position: absolute;
    top: 50%;
    left: 50%;

    width: 1000px;
    height: 1000px;
    margin-top: -500px;
    margin-left: -500px;

    border-width: 2px;
    border-style: dotted;
    border-color: white;
    border-radius: 50%;
    
      -webkit-animation: spin-right 60s linear infinite;
     -moz-animation: spin-right 10s linear infinite;
      -ms-animation: spin-right 10s linear infinite;
       -o-animation: spin-right 10s linear infinite;
          animation: spin-right 10s linear infinite;
}

@-webkit-keyframes spin-right {
  100% {
    -webkit-transform: rotate(360deg);
       -moz-transform: rotate(360deg);
        -ms-transform: rotate(360deg);
         -o-transform: rotate(360deg);
            transform: rotate(360deg);
  }
}

@keyframes spin-right {
  100% {
    -webkit-transform: rotate(360deg);
       -moz-transform: rotate(360deg);
        -ms-transform: rotate(360deg);
         -o-transform: rotate(360deg);
            transform: rotate(360deg);
  }
}


#moon {
    position: absolute;
    top: 0%;
    left: 75%;

    height: 50px;
    width: 50px;
    margin-left: 0px;
    margin-top: 0px;
    
    border-color: none;
    border-width: 4px;
    border-style: transparent;
    border-radius: 50%;
}

#moon-orbit {
    position: absolute;
    top: 25%;
    left: 25%;

    width: 300px;
    height: 300px;
    margin-top: -400px;
    margin-left: 100px;

    border-width: 2px;
    border-style: dotted;
    border-color: white;
    border-radius: 50%;
    
      -webkit-animation: spin-right 5s linear infinite;
     -moz-animation: spin-right 10s linear infinite;
      -ms-animation: spin-right 10s linear infinite;
       -o-animation: spin-right 10s linear infinite;
          animation: spin-right 10s linear infinite;
}

@-webkit-keyframes spin-right {
  100% {
    -webkit-transform: rotate(360deg);
       -moz-transform: rotate(360deg);
        -ms-transform: rotate(360deg);
         -o-transform: rotate(360deg);
            transform: rotate(360deg);
  }
}

@keyframes spin-right {
  100% {
    -webkit-transform: rotate(360deg);
       -moz-transform: rotate(360deg);
        -ms-transform: rotate(360deg);
         -o-transform: rotate(360deg);
            transform: rotate(360deg);
  }
}
#mars {
    position: absolute;
    top: 0px;
    left: 1000px;

    height: 50px;
    width: 50px;
    margin-left: -25px;
    margin-top: -25px;
    
    border-color: green;
    border-width: 4px;
    border-style: transparent;
    border-radius: 50%;
    
}

#mars-orbit {
    position: absolute;
    top: 50%;
    left: 0%;

    width: 2000px;
    height: 2000px;
    margin-top: -1000px;
    margin-left: -500px;

    border-width: 2px;
    border-style: dotted;
    border-color: white;
    border-radius: 50%;
    
      -webkit-animation: spin-right 5s linear infinite;
     -moz-animation: spin-right 10s linear infinite;
      -ms-animation: spin-right 10s linear infinite;
       -o-animation: spin-right 10s linear infinite;
          animation: spin-right 10s linear infinite;


}