solar_system.css

/* ============================================================================================== 
Nick Mkrtchyan
https://www.facebook.com/sonick.pk
http://www.Mkrtchyan.zz.mu
copied from: https://codepen.io/WebSonick/pen/vjmgu
================================================================================================= */

@keyframes move-twink-back {
    from {background-position:0 0;}
    to {background-position:-10000px 5000px;}
}
@-webkit-keyframes move-twink-back {
    from {background-position:0 0;}
    to {background-position:-10000px 5000px;}
}
@-moz-keyframes move-twink-back {
    from {background-position:0 0;}
    to {background-position:-10000px 5000px;}
}
@-ms-keyframes move-twink-back {
    from {background-position:0 0;}
    to {background-position:-10000px 5000px;}
}

@keyframes move-clouds-back {
    from {background-position:0 0;}
    to {background-position:10000px 0;}
}
@-webkit-keyframes move-clouds-back {
    from {background-position:0 0;}
    to {background-position:10000px 0;}
}
@-moz-keyframes move-clouds-back {
    from {background-position:0 0;}
    to {background-position:10000px 0;}
}
@-ms-keyframes move-clouds-back {
    from {background-position: 0;}
    to {background-position:10000px 0;}
}

.stars, .twinkling, .clouds {
  position:absolute;
  top:0;
  left:0;
  right:0;
  bottom:0;
  width:100%;
  height:100%;
  display:block;
}

.stars {
  background:#000 url(http://www.script-tutorials.com/demos/360/images/stars.png) repeat top center;
  z-index:0;
}

.twinkling{
  background:transparent url(http://www.script-tutorials.com/demos/360/images/twinkling.png) repeat top center;
  z-index:1;

  -moz-animation:move-twink-back 400s linear infinite;
  -ms-animation:move-twink-back 400s linear infinite;
  -o-animation:move-twink-back 400s linear infinite;
  -webkit-animation:move-twink-back 400s linear infinite;
  animation:move-twink-back 400s linear infinite;
}

.clouds{
    background:transparent repeat top center;
    z-index:3;

  -moz-animation:move-clouds-back 200s linear infinite;
  -ms-animation:move-clouds-back 200s linear infinite;
  -o-animation:move-clouds-back 200s linear infinite;
  -webkit-animation:move-clouds-back 200s linear infinite;
  animation:move-clouds-back 200s linear infinite;
}

#viz {
    top: 0;
    z-index: 2;
  }
svg {
  position: relative;
  width: 100%;
  height: 100%;
  z-index: 2;
}

h2 {
  position:absolute;
  bottom: 2%;
  left:2%;
  font-size: 12px;
  font-family: Verdana, Geneva, Tahoma, sans-serif;
  font-style: normal;
  font-weight: normal; 
  opacity: 0.5;
  z-index: 500;
  fill: white;
  text-align: left;
}

p {
  margin:0;
}

  text {
    pointer-events: none;
  }

#gradientplanet {
  position: absolute;
  width: 100%;
  height: 100%;
  z-index: 5;
}

#buttons {
    position: absolute;
    left:1%;
    top: 2%;
    background: None;
    z-index: 9000;
    text-align: center;
    opacity: 0.5;
}

#lastcolorbtn {
  margin-bottom: 20;
}

.btn {
    background: none;
    color: lightgray;
    border: none;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    font-size: 16px;
    /* border-right: 1px solid; */
    cursor: pointer;
    display: block;
    text-align: left;
  }
  .btn:visited {
    border: none;
    outline:none;
  }

  .btn:active {
    border: none;
    outline:none;
  }
  .btn:hover {
    border: none;
    color: darkgray;
    /* border-right:1px solid white; */
 
  }
  .btn:focus {
    border: none;
    /* border-right:1px solid white; */
    color:darkslategray;
    outline:none;
  }

.box {
  display: inline-block;
  border-radius: 100%;
  height: 20px;
  width: 20px;
  border: 2px solid;
  z-index: 500;
  color: black;
}

#container {
  position:absolute;
  bottom: 2%;
  right: 2%;
  font-size: 16px;
  font-family: Verdana, Geneva, Tahoma, sans-serif;
  color: white;
  opacity: 0.7;
  z-index: 500;
}