diff --git a/demoHtml/flex/js/index.js b/demoHtml/flex/js/index.js
index 7fc71d9..6dbfecb 100644
--- a/demoHtml/flex/js/index.js
+++ b/demoHtml/flex/js/index.js
@@ -2,6 +2,7 @@
     let initData = null;
     let grid = null;
     let currentComponent = null;
+    let cellHeight = 40;
 
     // 生成唯一id
     var generateUniqueId = function () {
@@ -29,19 +30,21 @@
         };
         grid = GridStack.init({
             // 一行高度
-            cellHeight: 60,
+            cellHeight,
             // 间距
             margin: 5,
-            minRow: 8,
+            minRow: Math.floor(($(window).height() - 80) / cellHeight),
             acceptWidgets: true,
             float: true,
             removable: '#trash',
+            // subGridOpts: subOptions,
+            // subGridDynamic: true,
             children: initData.children,
         });
         GridStack.setupDragIn('#components-panel .component-item', undefined, [
             {
                 w: 12,
-                h: 2,
+                h: 1,
                 type: 'banner',
                 name: '我是轮播图',
                 fontSize: 14,