diff --git a/app/assets/stylesheets/pages/milestone.scss b/app/assets/stylesheets/pages/milestone.scss
index 88fb70b07b..4226d532e3 100644
--- a/app/assets/stylesheets/pages/milestone.scss
+++ b/app/assets/stylesheets/pages/milestone.scss
@@ -62,3 +62,8 @@ li.milestone {
     }
   }
 }
+
+.milestone-detail {
+  border-bottom: 1px solid $border-color;
+  padding: 20px 0;
+}
diff --git a/app/views/projects/milestones/show.html.haml b/app/views/projects/milestones/show.html.haml
index 460950d59d..afdf18a14c 100644
--- a/app/views/projects/milestones/show.html.haml
+++ b/app/views/projects/milestones/show.html.haml
@@ -32,7 +32,7 @@
         = icon('pencil-square-o')
         Edit
 
-.detail-page-description.content-block
+.detail-page-description.milestone-detail.second-block
   %h2.title
     = markdown escape_once(@milestone.title), pipeline: :single_line
   %div