diff --git a/index.twig b/index.twig
index c0e841a..f596f50 100644
--- a/index.twig
+++ b/index.twig
@@ -52,7 +52,7 @@
 	</section>
 	<script data-isso="//comments.writing.straysong.co.uk/"
 	        src="//comments.writing.straysong.co.uk/js/embed.min.js"></script>
-	<section id="isso-thread">
+	<section id="isso-thread" class="container">
 		<noscript>Javascript is needed to display comments.</noscript>
 	</section>
 	<footer>