.hzhb{
    margin: 3rem 0rem;
}
.hzhb b{
    font-size: 1.2rem;
    color: #000;
}
.img-fluid{
    height: auto;
    width: 10rem;
    margin: 0rem 0.5rem;
}
.flex-center{
    margin-top: 2rem;
}