.topbar{position:relative}.titlebar{position:absolute;left:20rpx}.title{width:100%;box-sizing:border-box;padding-left:115px;padding-right:115px;position:absolute;left:0;z-index:10;text-overflow:ellipsis;overflow:hidden;white-space:nowrap}.navbtn,.title{height:32px;line-height:32px;text-align:center;color:#333;font-size:32rpx;font-weight:400}.navbtn{position:relative;z-index:11}