diff --git a/kallithea/public/css/style.css b/kallithea/public/css/style.css
--- a/kallithea/public/css/style.css
+++ b/kallithea/public/css/style.css
@@ -4398,6 +4398,7 @@ div.rst-block  pre {
 /** comment main **/
 .comments {
     padding: 10px 20px;
+    max-width: 978px;
 }
 
 .comments .comment {
@@ -4533,6 +4534,7 @@ form.comment-form {
 /** comment inline form **/
 .comment-inline-form {
     margin: 4px;
+    max-width: 978px;
 }
 .comment-inline-form .submitting-overlay {
     display: none;
@@ -4611,6 +4613,7 @@ form.comment-inline-form {
     padding: 0 20px 0px;
 }
 .inline-comments .comment {
+    max-width: 978px;
     border: 1px solid #ddd;
     -webkit-border-radius: 4px;
     border-radius: 4px;