diff --git a/sao/src/sao.less b/sao/src/sao.less
index 0797e65c01..47e6e10d95 100644
--- a/sao/src/sao.less
+++ b/sao/src/sao.less
@@ -794,6 +794,16 @@ img.icon {
             margin: 5px 0;
         }
     }
+    .form-notebook {
+        border-color: @panel-default-border;
+        border-style: solid;
+        border-width: 1px;
+
+        .nav-tabs {
+            background: @navbar-default-bg;
+            margin-bottom: 5px;
+        }
+    }
     .form-label {
         white-space: pre-wrap;
         width: max-content;