/src/main/java/org/htmlunit/html/HtmlUnknownElement.java
if ( getParentNode( ) == null) {
if ( !hasFeature ( CSS_RT_DISPLAY_RUBY_TEXT_ALWAYS ) && wasCreatedByJavascript ( ) && getParentNode ( ) == null ) {
case HtmlRuby.TAG_NAME: if (hasFeature(CSS_RUBY_DISPLAY_INLINE)) { return DisplayStyle.INLINE; } return DisplayStyle.RUBY; case HtmlRb.TAG_NAME: <extra_id_0> return DisplayStyle.BLOCK; } return DisplayStyle.RUBY_BASE; case HtmlRp.TAG_NAME: if (hasFeature(CSS_RP_DISPLAY_NONE)) { return DisplayStyle.NONE;