hr {
    border-top: 4px solid var(--navy);
    margin: 1.5rem 0;
    width: 6rem;
}
#courses p {
    border-bottom: 1px solid var(--gray_30);
    margin: 0;
    padding: 1rem 0;
    line-height: 1.3;
}
#courses p:last-of-type {
    border-bottom: 1px solid transparent;
}