:root { --govuk-content-width: 1100px; }
@media (min-width: 1030px) and (max-width: 1179px) {
    .govuk-width-container, .hero { margin-left: 30px !important; margin-right: 30px !important; }
}
@media (min-width: 1180px) {
    .govuk-width-container, .hero { margin-left: auto !important; margin-right: auto !important; }
}