diff --git a/src/core/lv_obj_pos.c b/src/core/lv_obj_pos.c
index c15e0086e..15791c948 100644
--- a/src/core/lv_obj_pos.c
+++ b/src/core/lv_obj_pos.c
@@ -674,6 +674,9 @@ bool lv_obj_hit_test(lv_obj_t * obj, const lv_point_t * point)
  */
 static bool refr_size(lv_obj_t * obj, lv_coord_t w, lv_coord_t h)
 {
+    lv_obj_t * parent = lv_obj_get_parent(obj);
+    if(parent == NULL) return false;
+
     /* If the size is managed by the layout don't let to overwrite it.*/
     if(obj->w_set == LV_SIZE_LAYOUT) w = lv_obj_get_width(obj);
     if(obj->h_set == LV_SIZE_LAYOUT) h = lv_obj_get_height(obj);
@@ -691,8 +694,6 @@ static bool refr_size(lv_obj_t * obj, lv_coord_t w, lv_coord_t h)
     lv_area_t ori;
     lv_obj_get_coords(obj, &ori);
 
-    lv_obj_t * parent = lv_obj_get_parent(obj);
-
     /*Check if the object inside the parent or not*/
     lv_area_t parent_fit_area;
     lv_obj_get_coords_fit(parent, &parent_fit_area);
diff --git a/src/core/lv_obj_style.c b/src/core/lv_obj_style.c
index 405fa9178..697300efb 100644
--- a/src/core/lv_obj_style.c
+++ b/src/core/lv_obj_style.c
@@ -178,7 +178,7 @@ void lv_obj_refresh_style(lv_obj_t * obj, lv_part_t part, lv_style_prop_t prop)
     lv_obj_invalidate(obj);
 
     if(prop == LV_STYLE_PROP_ALL ||
-      ((prop & LV_STYLE_PROP_INHERIT) && (prop & LV_STYLE_PROP_EXT_DRAW) && (prop & LV_STYLE_PROP_LAYOUT_REFR)))
+      ((prop & LV_STYLE_PROP_INHERIT) && ((prop & LV_STYLE_PROP_EXT_DRAW) || (prop & LV_STYLE_PROP_LAYOUT_REFR))))
     {
         if(part != LV_PART_SCROLLBAR) {
             refresh_children_style(obj);
diff --git a/src/widgets/lv_dropdown.c b/src/widgets/lv_dropdown.c
index 2be4e5dc9..77747c2a6 100644
--- a/src/widgets/lv_dropdown.c
+++ b/src/widgets/lv_dropdown.c
@@ -555,7 +555,7 @@ static void lv_dropdown_constructor(lv_obj_t * obj, const lv_obj_t * copy)
 
     if(copy == NULL) {
         lv_obj_clear_flag(obj, LV_OBJ_FLAG_SCROLL_ON_FOCUS);
-        lv_obj_set_width(obj, LV_DPX(150));
+        lv_obj_set_size(obj, LV_DPX(150), LV_SIZE_CONTENT);
         lv_dropdown_set_options_static(obj, "Option 1\nOption 2\nOption 3");
     }
     /*Copy an existing drop down list*/
@@ -839,11 +839,10 @@ static lv_res_t lv_dropdown_signal(lv_obj_t * obj, lv_signal_t sign, void * para
     else if(sign == LV_SIGNAL_COORD_CHG) {
         if(dropdown->list) lv_dropdown_close(obj);
     }
-    else if(sign == LV_SIGNAL_STYLE_CHG) {
-        lv_coord_t top = lv_obj_get_style_pad_top(obj, LV_PART_MAIN);
-        lv_coord_t bottom = lv_obj_get_style_pad_bottom(obj, LV_PART_MAIN);
+    else if(sign == LV_SIGNAL_GET_SELF_SIZE) {
+        lv_point_t * p = param;
         const lv_font_t * font = lv_obj_get_style_text_font(obj, LV_PART_MAIN);
-        lv_obj_set_height(obj, top + bottom + lv_font_get_line_height(font));
+        p->y = lv_font_get_line_height(font);
     }
     else if(sign == LV_SIGNAL_CONTROL) {
         char c = *((char *)param);