dl,ol,p,ul{margin:0}body,dd,dl,fieldset,form,h1,h2,h3,h4,h5,h6,legend,li,ol,p,select,td,textarea,th,ul{margin:0;padding:0;box-sizing:border-box;font-family:PingFang SC}input{outline:0}img{border:0;vertical-align:top}body,html{height:100%;width:100%}ul{margin:0}::-webkit-scrollbar{width:4px;height:4px}::-webkit-scrollbar-thumb{border-radius:5px;-webkit-box-shadow:inset 0 0 5px #49a4d1;background:linear-gradient(146deg,#49a4d1,#56bff2)}::-webkit-scrollbar-track{-webkit-box-shadow:inset 0 0 5px #fff;border-radius:0;background:#fff}#app{font:14px PingFang SC;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-align:left;color:#2c3e50;width:100%;height:100%;overflow:hidden}.left{float:left}.right{float:right}ul li{list-style:none}