diff --git a/djblets/static/djblets/css/config-forms.less b/djblets/static/djblets/css/config-forms.less
index 066812d9fc1658881e919560bff4ebe0f0a477e8..8bf2a970e29e2ec0b66918f156127ef32ec68e80 100644
--- a/djblets/static/djblets/css/config-forms.less
+++ b/djblets/static/djblets/css/config-forms.less
@@ -283,7 +283,7 @@
 
     .box {
       .box-main {
-        h3 {
+        .box-title {
           margin: 0;
           padding: 0.5em 0.3em 0.3em 0.5em;
           font-size: 10pt;
@@ -442,8 +442,14 @@
     }
 
     .config-forms-subsection {
-      margin-left: 1em;
-      margin-top: 1em;
+      margin: 2em 0;
+
+      h3 {
+        border-bottom: 1px #D0D0D0 solid;
+        font-size: 100%;
+        padding: 0 0 0 0.4em;
+        margin-bottom: 1em;
+      }
     }
   }
 }