responsive images in game pages

layouts/games/list.html

@@ -10,7 +10,7 @@
 	<div class="break"></div>
 		<h2 class="small-text">Platforms:</h2>
 		<span class="margin small-text">{{ delimit .Params.platforms " · " }}</span>
-	<img class="shadow" srcset="{{ .Params.featured.srcset }}" src="{{ .Params.featured.url }}" alt="{{ .Params.featured.alt }}"/>
+		{{ partial "responsive-image.html" (dict "context" .Params.featured "class" "shadow fill-wh") }}
 </div>
 
 {{ if .Params.toc }}