diff --git a/examples/widgets/btn/lv_example_btn_2.c b/examples/widgets/btn/lv_example_btn_2.c
index e8adb7fcc..f5e29dd1c 100644
--- a/examples/widgets/btn/lv_example_btn_2.c
+++ b/examples/widgets/btn/lv_example_btn_2.c
@@ -1,36 +1,48 @@
 #include "../../../lvgl.h"
 #include <stdio.h>
-#if LV_USE_BTN
+#if LV_USE_BTN && LV_BUILD_EXAMPLES
 
 /**
  * Style a button from scratch
  */
 void lv_example_btn_2(void)
 {
+    static lv_style_transition_dsc_t trans;
+    static lv_style_prop_t props[] = {LV_STYLE_OUTLINE_WIDTH, LV_STYLE_OUTLINE_OPA, 0};
+    lv_style_transition_dsc_init(&trans, props, &lv_anim_path_def, 300, 0);
 
     static lv_style_t style;
-    static lv_style_t style_pr;
     lv_style_init(&style);
+    lv_style_set_outline_opa(&style, LV_OPA_COVER);
+    lv_style_set_outline_color(&style, lv_color_blue());
+
+    static lv_style_t style_pr;
     lv_style_init(&style_pr);
+    lv_style_set_outline_width(&style_pr, 30);
+    lv_style_set_outline_opa(&style_pr, LV_OPA_TRANSP);
+    lv_style_set_transition(&style_pr, &trans);
 
-    /*Init the default style*/
-    lv_style_set_radius(&style, 3);
-
-    lv_style_set_bg_opa(&style, LV_OPA_70);
-    lv_style_set_bg_color(&style, lv_color_blue());
-    lv_style_set_bg_grad_color(&style, lv_color_blue_darken_2());
-    lv_style_set_bg_grad_dir(&style, LV_GRAD_DIR_VER);
-
-    lv_style_set_border_opa(&style, LV_OPA_40);
-    lv_style_set_border_width(&style, 2);
-    lv_style_set_border_color(&style, lv_color_grey());
-
-    lv_style_set_shadow_width(&style, 8);
-    lv_style_set_shadow_color(&style, lv_color_grey());
-    lv_style_set_shadow_ofs_y(&style, 8);
-
-    lv_style_set_text_color(&style, lv_color_white());
-
+//
+//    /*Init the default style*/
+//    lv_style_set_radius(&style, 3);
+//
+//    lv_style_set_bg_opa(&style, LV_OPA_100);
+//    lv_style_set_bg_color(&style, lv_color_blue());
+//    lv_style_set_bg_grad_color(&style, lv_color_blue_darken_2());
+//    lv_style_set_bg_grad_dir(&style, LV_GRAD_DIR_VER);
+//
+//    lv_style_set_border_opa(&style, LV_OPA_40);
+//    lv_style_set_border_width(&style, 2);
+//    lv_style_set_border_color(&style, lv_color_grey());
+//
+//    lv_style_set_shadow_width(&style, 8);
+//    lv_style_set_shadow_color(&style, lv_color_grey());
+//    lv_style_set_shadow_ofs_y(&style, 8);
+//
+//    lv_style_set_text_color(&style, lv_color_white());
+//
+//    lv_style_set_pad_all(&style, 10);
+//    lv_style_set_pad_all(&style_pr, 40);
 
     /*Init the pressed style*/
     lv_style_set_shadow_ofs_y(&style_pr, 3);
@@ -38,14 +50,14 @@ void lv_example_btn_2(void)
     lv_style_set_bg_grad_color(&style_pr, lv_color_blue_darken_4());
 
     lv_obj_t * btn1 = lv_btn_create(lv_scr_act());
-    lv_obj_remove_style(btn1, LV_PART_ANY, LV_STATE_ANY, NULL);
+//    lv_obj_remove_style(btn1, LV_PART_ANY, LV_STATE_ANY, NULL);
     lv_obj_add_style(btn1, LV_PART_MAIN, LV_STATE_DEFAULT, &style);
     lv_obj_add_style(btn1, LV_PART_MAIN, LV_STATE_PRESSED, &style_pr);
+    lv_obj_set_size(btn1, LV_SIZE_CONTENT, LV_SIZE_CONTENT);
     lv_obj_center(btn1);
 
     lv_obj_t * label = lv_label_create(btn1);
     lv_label_set_text(label, "Button");
     lv_obj_center(label);
-
 }
 #endif
diff --git a/src/core/lv_obj.c b/src/core/lv_obj.c
index b98f63d7a..d449657da 100644
--- a/src/core/lv_obj.c
+++ b/src/core/lv_obj.c
@@ -956,9 +956,7 @@ static void lv_obj_event_cb(lv_obj_t * obj, lv_event_t e)
             lv_obj_refr_pos(child);
         }
 
-        if(lv_obj_get_style_layout(obj, LV_PART_MAIN)) {
-            lv_obj_mark_layout_as_dirty(obj);
-        }
+        lv_obj_mark_layout_as_dirty(obj);
 
         lv_obj_refresh_ext_draw_size(obj);
     }