body{margin:0}.main{position:absolute;width:100%;height:100%;background-color:#f2f2f2;flex-direction:column}.main,.tab{display:flex}.tab{background-color:#fff;padding:20px;justify-content:center;border-bottom:1px solid #f2f2f2}.tab-item{font-size:24px;font-weight:700;padding:0 80px;color:#222}.tab-item+.tab-item{border-left:2px solid #ddd}footer,header{background-color:#fff}footer{padding:20px;text-align:center;color:#999;border-top:1px solid #f2f2f2}footer a{cursor:pointer}