.nav-bar{
    height: 5rem;
    width: 20rem;
    background-color: rgb(26, 91, 212);
}
nav{
    padding: 0;
    margin-top: 0;
    background-color: rgb(4, 46, 123);
    font-size: x-large;
}
a{
    color: whitesmoke;
    text-decoration: none;
}
a:hover {
    background-color: rgba(36, 149, 209, 0.668);
  }