.topbar{
    position: relative;
}

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