HTML5实现圣诞雪人动画代码基于HTML5、CSS3、prefixfree.min.js制作，雪人跳跃动画效果，红色网页背景，雪人戴着黑色帽子，蓝色围巾。-Christmas snowman realize HTML5 animation code based on HTML5, CSS3, prefixfree.min.js making, snowman jumping animation, red page background, snowman wearing a black hat,