.nav-bar{
    border-bottom: 2px solid black;
    margin: 5px;
    padding: 5px;
}

.nav-bar p{
    font-size: ;
    font-weight: ;
    color: black;
}

.nav-bar button{
    color: ;
    border: ;
    border-radius: ;
    border-color: ;
    margin: 5px;
    padding: 5px;
}