MediaWiki:Group-user.css

/* CSS placed here will affect registered users only */
.anonymous-show {
  display: none !important;
}
div.editor-show,
p.editor-show {
  display: block !important;
}
span.editor-show,
small.editor-show {
  display: inline !important;
}
table.editor-show {
  display: table !important;
}
li.editor-show {
  display: list-item !important;
}

/* Increase the height of the image upload box */
#wpUploadDescription {
	height: 13em;
}