.yonghuxingxi{
    /*position: absolute;*/
    /*right: 80px   ;*/
    /*top: 40px;*/
    display: flex;
    flex-direction: row;
    display: none;
}
.userinfo{
    position: absolute;margin: 0 auto;left: 0;right: 0;
    display: flex;
    flex-direction: row-reverse;
    top: 40px;
}
.lay-head{
    position: relative;
}

#username{
    margin-right: 10px;
    margin-top: 3px;
}