User:Zenith shadow/minerva.css

max-width: 90%; }
 * 1) bodyContent {

.header { max-width: 90%; }

.banner-container, .header, .page-header-bar, .overlay-header, .content, .overlay-content, .content-unstyled, .pre-content, .post-content, #mw-content-text > form { max-width: 90%; }