diff --git a/less/forum/discussion.less b/less/forum/discussion.less
index 4d92ecca6..4df1959df 100644
--- a/less/forum/discussion.less
+++ b/less/forum/discussion.less
@@ -237,6 +237,25 @@
     color: #666;
     font-size: 90%;
   }
+  & h1 {
+    font-size: 160%;
+  }
+  & h2 {
+    font-size: 120%;
+    font-weight: bold;
+  }
+  & h3 {
+    font-size: 100%;
+    font-weight: bold;
+    text-transform: uppercase;
+  }
+  & h4, & h5, & h6 {
+    font-size: 100%;
+    font-weight: bold;
+  }
+  & img {
+    max-width: 100%;
+  }
 }
 .post.is-hidden {
   & .post-header, & .post-header a, & .post-user h3, & .post-user h3 a {
diff --git a/less/lib/components.less b/less/lib/components.less
index 6ed347d00..dd6500113 100644
--- a/less/lib/components.less
+++ b/less/lib/components.less
@@ -18,3 +18,7 @@
 .loading-indicator-block {
   height: 100px;
 }
+
+hr {
+  border-top: 2px solid @fl-body-secondary-color;
+}