MediaWiki:Common.css

/* CSS placed here will be applied to all skins */
#div-home-img {position: relative; overflow: hidden; height: 250px;}
#div-home-img img {position: absolute; top: -9999px; bottom: -9999px; left: -9999px; right: -9999px; margin: auto;}

body.skin-minerva #div-home-img { display:none; }