diff --git a/source/css/layout/_partial/comment/comment.styl b/source/css/layout/_partial/comment/comment.styl
index 2ef7390..ce87332 100644
--- a/source/css/layout/_partial/comment/comment.styl
+++ b/source/css/layout/_partial/comment/comment.styl
@@ -13,6 +13,7 @@ if (hexo-config('comment.valine.enable') && hexo-config('comment.gitalk.enable')
 .comments-container {
   display: inline-block;
   margin-top: $component-interspace;
+  width: 100%;
 
   #comment-anchor {
     width: 100%;