#app,body,html{height:100%;width:100%;margin:0;-webkit-overflow-scrolling:touch}*{margin:0;padding:0;font-family:pingfang sc}body,html{height:100%}.content{width:1200px;margin:0 auto}.fl{clear:both}.ov{overflow:hidden}@media screen and (max-width:320px){body,html{font-size:9px}}@media screen and (min-width:321px) and (max-width:375px){body,html{font-size:11px}}@media screen and (min-width:376px) and (max-width:414px){body,html{font-size:12px}}@media screen and (min-width:415px) and (max-width:428px){body,html{font-size:13px}}@media screen and (min-width:429px) and (max-width:639px){body,html{font-size:15px}}@media screen and (min-width:640px) and (max-width:719px){body,html{font-size:20px}}@media screen and (min-width:720px) and (max-width:749px){body,html{font-size:22.5px}}@media screen and (min-width:750px) and (max-width:799px){body,html{font-size:23.5px}}@media screen and (min-width:800px){body,html{font-size:25px}}