[responsive/portal] Improve look of compact news on lower widths

styles/prosilver/template/portal/modules/news_compact_center.html

@@ -15,7 +15,7 @@
 		<dd class="posts responsive-portal-news" data-skip-responsive="true">{L_REPLIES}</dd>
 		<dd class="views responsive-portal-news" data-skip-responsive="true">{L_VIEWS}</dd>
 	<!-- ENDIF -->
-	<dd class="lastpost"><span>{L_LAST_POST}</span></dd>
+	<dd class="lastpost responsive-portal-news"><span>{L_LAST_POST}</span></dd>
 {$CC_BLOCK_H_R}
 <ul class="topiclist topics responsive-portal-news">
 <!-- ENDIF -->