MediaWiki:Vector.css Voyage Tips and guide

/* CSS placed here will affect users of the Vector skin */
#mw-content-subtitle {
 font-size: 100%;
}

/* Hide title on the main page */
.page-Main_Page .firstHeading, .page-Main_Page #contentSub {
  display: none;
}

/* WikidataPageBanner outputs a second <h1> and empties the original one.
   Hide this in Vector. [[phab:T97891]] */
#firstHeading:empty {
    display: none;
}