html {
  min-height: 100%;
}

body {
  min-height: 100%;
}

@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%;
  min-height:100%;
  height: 3100px;
  display:block;
}

span[ID*="merry"] {
    position: absolute;
    width: 150px;
    height: 100px;
    font-color:#fff;
    z-index:-3;
    font-size: 26px;
    font-family:fantasy;
    color:red;
}


.stars {
  background:#000 url(images/stars.png) repeat top center;
  z-index:-5;
}

.twinkling{
  background:transparent url(images/twinkling.png) repeat top center;
  z-index:-4;

  -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/clouds.png) 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;
}