单调数列

/*鼠标跟随效果*/
<style type="text/css">
    .draw {
        position: fixed;
         1px;
        line-height: 1px;
        pointer-events: none;
    }
    @keyframes floatOne {
        0% {
                    opacity:0.8;
        }
        50% {
                    opacity:0.8;
        }
        100% {
                    opacity:0;
            transform:translate3D(0, -20px, 0) scale(5) rotate(45deg);
        }
    }
</style>
<script type="text/javascript">
    var H = 0;
    $(document).bind('mousemove touchmove',function(e) {
        e.preventDefault();
        var drawSize = 10;
        var drawType = '❉';
        var floatType = 'floatOne';
        var xPos = e.originalEvent.pageX;
        var yPos = e.originalEvent.pageY;

        $('body').append('<div class="draw" style=" font-size:'+drawSize+'px;left:'+xPos+'px;top:'+yPos+'px;-webkit-animation:'+floatType+' .9s 1;-moz-animation:'+floatType+' .9s 1;color:#FFFF00;">'+drawType+'</div>');

        $('.draw').each(function() {
            var div = $(this);
            setTimeout(function() {$(div).remove();},800);
        });
    });
</script>