diff --git a/portal/menu-builder.html b/portal/menu-builder.html
index fc62508..71bf6d3 100644
--- a/portal/menu-builder.html
+++ b/portal/menu-builder.html
@@ -17,6 +17,7 @@
     .builder-container {
       display: flex;
       flex: 1;
+      min-height: 0;
       gap: 16px;
       padding: 16px;
       overflow: hidden;
@@ -468,6 +469,7 @@
     /* Properties Panel */
     .builder-properties {
       width: 320px;
+      min-height: 0;
       background: #fff;
       border-radius: var(--radius);
       box-shadow: var(--shadow);
@@ -479,6 +481,12 @@
     }
 
     .properties-header {
+      position: sticky;
+      top: -16px;
+      margin: -16px -16px 0 -16px;
+      padding: 16px;
+      background: #fff;
+      z-index: 1;
       display: flex;
       justify-content: space-between;
       align-items: center;