.contact-icon{
    width: 50px;
    height: 50px;
    border-radius: 50%;
    margin-right: 10px;
    margin-bottom: 10px;
}
.contact-zalo{
    width: 50px;
    height: 50px;
    border-radius: 50%;
    margin-right: 10px;
    margin-bottom:10px;
}

.contact-icons{
    position: fixed;
    bottom: 5%;
    right:10px;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
}