提交：修改图片的大小；

lib/widget/state_layout.dart

@@ -65,8 +65,8 @@ class _StateLayoutState extends State<StateLayout> {
         Offstage(
           offstage: img.isEmpty,
           child: Container(
-            height: 120.0,
-            width: 120.0,
+            height: 133.5 * 2,
+            width: 95 * 2,
             decoration: BoxDecoration(
               image: DecorationImage(
                 image: ImageUtils.getAssetImage(img),