*{margin:0;padding:0}body{font-family:"helvetica neue", "Hiragino Sans GB", "冬青黑", "Microsoft YaHei", "微软雅黑", arial, sans-serif;font-size:14px;color:#444;-webkit-font-smoothing:antialiased;-webkit-backface-visibility:hidden;background-color:#f6f6f6}a{color:inherit;text-decoration:none;outline:0}ul{list-style:none}img{display:block;border:none}input,input:focus{outline:none}@keyframes upDown{0%{transform:translateY(0px)}25%{transform:translateY(-2px)}50%{transform:translateY(0px)}75%{transform:translateY(2px)}100%{transform:translateY(0px)}}