.site-content {
    padding-top: 1em;
}

.page-header {
    padding-bottom: 0;
}

@media screen and (min-width: 48em) {
    .page.page-one-column .entry-header, 
    .twentyseventeen-front-page.page-one-column .entry-header, 
    .archive.page-one-column:not(.has-sidebar) .page-header {
        margin-bottom: 0;
    }
}