diff --git a/src/shared/components/comment/comment-form.tsx b/src/shared/components/comment/comment-form.tsx
index c60cde20..7e4aa9fe 100644
--- a/src/shared/components/comment/comment-form.tsx
+++ b/src/shared/components/comment/comment-form.tsx
@@ -21,6 +21,7 @@ interface CommentFormProps {
   onReplyCancel?(): void;
   allLanguages: Language[];
   siteLanguages: number[];
+  containerClass?: string;
   onUpsertComment(form: EditComment | CreateComment): void;
 }
 
@@ -40,7 +41,7 @@ export class CommentForm extends Component<CommentFormProps, any> {
         : undefined;
 
     return (
-      <div className="mb-3">
+      <div className={["mb-3", this.props.containerClass].join(" ")}>
         {UserService.Instance.myUserInfo ? (
           <MarkdownTextArea
             initialContent={initialContent}
diff --git a/src/shared/components/comment/comment-node.tsx b/src/shared/components/comment/comment-node.tsx
index 0380a726..9ebbf348 100644
--- a/src/shared/components/comment/comment-node.tsx
+++ b/src/shared/components/comment/comment-node.tsx
@@ -400,6 +400,7 @@ export class CommentNode extends Component<CommentNodeProps, CommentNodeState> {
                 focus
                 allLanguages={this.props.allLanguages}
                 siteLanguages={this.props.siteLanguages}
+                containerClass="comment-comment-container"
                 onUpsertComment={this.props.onEditComment}
               />
             )}
@@ -1143,6 +1144,7 @@ export class CommentNode extends Component<CommentNodeProps, CommentNodeState> {
             focus
             allLanguages={this.props.allLanguages}
             siteLanguages={this.props.siteLanguages}
+            containerClass="comment-comment-container"
             onUpsertComment={this.props.onCreateComment}
           />
         )}
diff --git a/src/shared/components/post/post.tsx b/src/shared/components/post/post.tsx
index 9c68532b..652c38c2 100644
--- a/src/shared/components/post/post.tsx
+++ b/src/shared/components/post/post.tsx
@@ -384,6 +384,7 @@ export class Post extends Component<any, PostState> {
                 disabled={res.post_view.post.locked}
                 allLanguages={this.state.siteRes.all_languages}
                 siteLanguages={this.state.siteRes.discussion_languages}
+                containerClass="post-comment-container"
                 onUpsertComment={this.handleCreateComment}
                 finished={this.state.finished.get(0)}
               />