jQuery+CSS3星云密布旋转背景动画特效

js代码

<script src=\"js/jquery.min.js\"></script>
<script>
$(document).ready(function(){
  var stars=800;
  var $stars=$(\".stars\");
  var r=800;
  for(var i=0;i<stars;i++){
    var $star=$(\"<div/>\").addClass(\"star\");
    $stars.append($star);
  }
  $(\".star\").each(function(){
    var cur=$(this);
    var s=0.2+(Math.random()*1);
    var curR=r+(Math.random()*300);
    cur.css({ 
      transformOrigin:\"0 0 \"+curR+\"px\",
      transform:\" translate3d(0,0,-\"+curR+\"px) rotateY(\"+(Math.random()*360)+\"deg) rotateX(\"+(Math.random()*-50)+\"deg) scale(\"+s+\",\"+s+\")\"
       
    })
  })
})
</script>