diff --git a/kallithea/front-end/style.less b/kallithea/front-end/style.less
--- a/kallithea/front-end/style.less
+++ b/kallithea/front-end/style.less
@@ -90,6 +90,8 @@ nav.navbar.mainmenu > .navbar-header > .
   overflow-x: visible;
 }
 
+/* margin below PR comments */
+.comment > .panel,
 /* margin below top level panels */
 #main > .panel {
   margin-bottom: @kallithea-panel-margin;
@@ -547,6 +549,9 @@ td.inline-comments {
 .inline-comments .comments-number {
   padding: 0px 0px 10px 0px;
 }
+.comment-inline-well {
+  margin-bottom: @kallithea-panel-margin;
+}
 input.status_change_checkbox,
 input.status_change_radio {
   margin: 0 0 5px 15px;
diff --git a/kallithea/templates/changeset/changeset_file_comment.html b/kallithea/templates/changeset/changeset_file_comment.html
--- a/kallithea/templates/changeset/changeset_file_comment.html
+++ b/kallithea/templates/changeset/changeset_file_comment.html
@@ -82,7 +82,7 @@
   <div class="ac">
   %if request.authuser.username != 'default':
     ${h.form('#', class_='inline-form')}
-      <div class="well well-sm clearfix">
+      <div class="well well-sm clearfix comment-inline-well">
         <div class="comment-help">
           <span class="text-muted">${_('Comments are in plain text. Use @username to notify another user.')|n}</span>
         </div>