headlines: hide blank feed elements if not rendering virtual feed

css/default.css

@@ -686,6 +686,9 @@ body.ttrss_main #headlines-wrap-inner {
   margin: 0px;
   border-width: 0px;
 }
+body.ttrss_main #headlines-frame[is-vfeed="0"] .header .feed {
+  display: none;
+}
 body.ttrss_main #headlines-frame {
   padding: 0px;
   border: 0px #ddd;

css/tt-rss.less

@@ -811,6 +811,10 @@ body.ttrss_main {
 		border-width : 0px;
 	}
 
+	#headlines-frame[is-vfeed="0"] .header .feed {
+		display : none;
+	}
+
 	#headlines-frame {
 		padding : 0px;
 		border: 0px @border-default;

themes/night.css

@@ -687,6 +687,9 @@ body.ttrss_main #headlines-wrap-inner {
   margin: 0px;
   border-width: 0px;
 }
+body.ttrss_main #headlines-frame[is-vfeed="0"] .header .feed {
+  display: none;
+}
 body.ttrss_main #headlines-frame {
   padding: 0px;
   border: 0px #222;

themes/night_blue.css

@@ -687,6 +687,9 @@ body.ttrss_main #headlines-wrap-inner {
   margin: 0px;
   border-width: 0px;
 }
+body.ttrss_main #headlines-frame[is-vfeed="0"] .header .feed {
+  display: none;
+}
 body.ttrss_main #headlines-frame {
   padding: 0px;
   border: 0px #222;