.content-page header section {
    margin-bottom: 25px;
}

.content-page.narrow section {
    max-width: 750px;
    margin-left: auto;
    margin-right: auto;
}

.content-page.narrow header,
.content-page.narrow main {
    margin-left: var(--grid-gutter);
    margin-right: var(--grid-gutter);
}