diff --git a/core/modules/aggregator/templates/aggregator-feed-source.html.twig b/core/modules/aggregator/templates/aggregator-feed-source.html.twig
index d8ee76b3741..5f1342534f3 100644
--- a/core/modules/aggregator/templates/aggregator-feed-source.html.twig
+++ b/core/modules/aggregator/templates/aggregator-feed-source.html.twig
@@ -3,7 +3,7 @@
  * @file
  * Default theme implementation to present the source of the feed.
  *
- * The contents are rendered below feed listings when browsing source feeds.
+ * The contents are rendered above feed listings when browsing source feeds.
  * For example, "example.com/aggregator/sources/1".
  *
  * Available variables:
@@ -19,14 +19,16 @@
  * @ingroup themeable
  */
 #}
-<div{{ attributes }}>
+<div{{ attributes}}>
   {{ source_icon }}
   {{ source_image }}
-  <p class="feed-description">{{ source_description }}</p>
-  <dl class="feed-details">
-    <dt class="feed-url">{{ 'URL'|t }}</dt>
-    <dd>{{ source_url }}</dd>
-    <dt class="feed-updated">{{ 'Updated'|t }}</dt>
-    <dd>{{ last_checked }}</dd>
-  </dl>
-</div
+  <div class="feed-description">
+    {{ source_description }}
+  </div>
+  <div class="feed-url">
+    <em>{{ 'URL'|t }}:</em> <a href="{{ source_url }}">{{ source_url }}</a>
+  </div>
+  <div class="feed-updated">
+    <em>{{ 'Updated'|t }}:</em> {{ last_checked }}
+  </div>
+</div>