@keyframes move-twink-back {
  0% {
    background-position: 0 0;
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  20% {
    opacity: 0.1;
  }
  30% {
    opacity: 0.2;
  }
  40% {
    opacity: 0;
  }
  50% {
    opacity: 0.11;
  }
  60% {
    opacity: 0;
  }
  70% {
    opacity: 1;
  }
  80% {
    opacity: 0;
  }
  80% {
    opacity: 1;
  }
  100% {
    background-position: -10000px 5000px;
    opacity: 0;
  }
}

@-webkit-keyframes move-twink-back {
  0% {
    background-position: 0 0;
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  20% {
    opacity: 0;
  }
  30% {
    opacity: 1;
  }
  40% {
    opacity: 0;
  }
  50% {
    opacity: 1;
  }
  60% {
    opacity: 0;
  }
  70% {
    opacity: 1;
  }
  80% {
    opacity: 0;
  }
  80% {
    opacity: 1;
  }
  100% {
    background-position: -10000px 5000px;
    opacity: 0;
  }
}

@-moz-keyframes move-twink-back {
  0% {
    background-position: 0 0;
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  20% {
    opacity: 0;
  }
  30% {
    opacity: 1;
  }
  40% {
    opacity: 0;
  }
  50% {
    opacity: 1;
  }
  60% {
    opacity: 0;
  }
  70% {
    opacity: 1;
  }
  80% {
    opacity: 0;
  }
  80% {
    opacity: 1;
  }
  100% {
    background-position: -10000px 5000px;
    opacity: 0;
  }
}

@-ms-keyframes move-twink-back {
  0% {
    background-position: 0 0;
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  20% {
    opacity: 0;
  }
  30% {
    opacity: 1;
  }
  40% {
    opacity: 0;
  }
  50% {
    opacity: 1;
  }
  60% {
    opacity: 0;
  }
  70% {
    opacity: 1;
  }
  80% {
    opacity: 0;
  }
  80% {
    opacity: 1;
  }
  100% {
    background-position: -10000px 5000px;
    opacity: 0;
  }
}

@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;
  }
}

.planetas,
.stars2,
.twinkling,
.clouds {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  display: block;
  overflow: hidden;
}

.planetas {
  /*background: #000 url('images/nuevo-fondo-top.png') repeat top center;
  z-index: 0;*/
  background: url('images/planetas-1.png') repeat top center transparent;
background-size: cover;
-webkit-transform: scale(1.1);
-moz-transform: scale(1.1);
transform: scale(1.1);
z-index: 1;

}
.stars2 {
  background: url('images/estrellas/stars.png') repeat top center transparent;
  z-index: 1;
  opacity: 0.3;
  -webkit-transform: scale(1.1);
  -moz-transform: scale(1.1);
  transform: scale(1.1);
}

.twinkling {
  /*background: transparent url('images/estrellas/twinkling.png') repeat top center;*/
  background: transparent url('images/estrellas/stars.png') repeat top center;
  z-index: 3;
  opacity: 0.4;
  /*-webkit-transform: scale(1.1);
  -moz-transform: scale(1.1);
  transform: scale(1.1);*/
  -moz-animation: move-twink-back 200s linear infinite;
  -ms-animation: move-twink-back 200s linear infinite;
  -o-animation: move-twink-back 200s linear infinite;
  -webkit-animation: move-twink-back 200s linear infinite;
  animation: move-twink-back 200s linear infinite;
}

.clouds {
  background: transparent url('images/estrellas/clouds.png') repeat top center;
  background-size: cover;
  z-index: 4;
  /*-webkit-transform: scale(1.1);
  -moz-transform: scale(1.1);
  transform: scale(1.1);*/
  -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;
}