#page_not_found {
    text-align: center;
}
#page_not_found h2 {
    font-size: 1.75rem;
}
.four-o-four {
    display: block;
    font-size: 2.25em;
    color: var(--accent-color);
    margin-bottom: 5px;
    line-height: 1em;
    font-weight: 300;
}
.four-o-four::before,
.four-o-four::after {
    content: " - ";
}