diff --git a/demoHtml/flex/css/index.css b/demoHtml/flex/css/index.css
index 72107d3..b42ed3d 100644
--- a/demoHtml/flex/css/index.css
+++ b/demoHtml/flex/css/index.css
@@ -149,10 +149,14 @@ html {
     position: relative;
     overflow-y: auto;
     padding: 10px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
 }
 .grid-stack {
     background-color: #f9fafb;
     border-radius: 8px;
+    width: 960px;
 }
 .grid-stack-item-content {
     cursor: pointer;
diff --git a/demoHtml/flex/js/index.js b/demoHtml/flex/js/index.js
index 40182fd..7fa0b72 100644
--- a/demoHtml/flex/js/index.js
+++ b/demoHtml/flex/js/index.js
@@ -2,7 +2,7 @@
     let initData = null;
     let grid = null;
     let currentComponent = null;
-    let cellHeight = 40;
+    let cellHeight = 60;
 
     // 生成唯一id
     var generateUniqueId = function () {
@@ -36,8 +36,9 @@
             // 一行高度
             cellHeight,
             // 间距
-            margin: 5,
-            minRow: Math.floor(($(window).height() - 80) / cellHeight),
+            margin: 0,
+            minRow: Math.floor(1080 / 2 / cellHeight),
+            maxRow: Math.floor(1080 / 2 / cellHeight),
             acceptWidgets: true,
             float: true,
             removable: '#trash',
@@ -48,7 +49,7 @@
         GridStack.setupDragIn('#components-panel .component-item', undefined, [
             {
                 w: 2,
-                h: 4,
+                h: 2,
                 type: 'image',
                 name: '图片',
                 image: '',
@@ -62,7 +63,7 @@
             },
             {
                 w: 2,
-                h: 2,
+                h: 1,
                 type: 'text',
                 childrenType: '',
                 name: '文本',
@@ -302,7 +303,7 @@
                 item.xCopy = item.x;
                 item.x = item.x * (1920 / 12);
                 item.yCopy = item.y;
-                item.y = item.y * cellHeight;
+                item.y = item.y * cellHeight * 2;
 
                 item.wCopy = item.w;
                 item.w = item.w * (1920 / 12);
@@ -310,7 +311,7 @@
                     item.h = 1;
                 }
                 item.hCopy = item.h;
-                item.h = item.h * cellHeight;
+                item.h = item.h * cellHeight * 2;
             });
             console.log(initDataCopy);
             return initDataCopy;