#app{background-color:#eff2f5;min-height:100vh;font-family:Helvetica Neue,Helvetica,Arial,PingFang SC,Hiragino Sans GB,Heiti SC,Microsoft YaHei,WenQuanYi Micro Hei,sans-serif}.add_btn{position:fixed;bottom:0}.show_more{perspective:500;animation:mymove 1.3s infinite;-webkit-animation:mymove 1.3s infinite}@keyframes mymove{0%{transform:translate(0)}50%{transform:translateY(3px)}to{transform:translate(0)}}