diff --git a/libcef/browser/osr/render_widget_host_view_osr.cc b/libcef/browser/osr/render_widget_host_view_osr.cc
index a4c2585691b440d1929f27b2269409fbbf7d81ec..aab66766280f97c844ba007372b7629ac6504062 100644
--- a/libcef/browser/osr/render_widget_host_view_osr.cc
+++ b/libcef/browser/osr/render_widget_host_view_osr.cc
@@ -600,6 +600,11 @@ void CefRenderWidgetHostViewOSR::ShowWithVisibility(
 
   is_showing_ = true;
 
+#ifdef OHOS_EX_TOPCONTROLS
+  top_controls_offset_ = 0;
+  top_content_offset_ = 0;
+#endif
+
 #ifndef DISABLE_GPU
   auto compositor = CefRenderWidgetHostViewOSR::GetCompositor(
       browser_impl_->GetAcceleratedWidget(is_popup_));
diff --git a/libcef/browser/prefs/renderer_prefs.cc b/libcef/browser/prefs/renderer_prefs.cc
index 2fa3d04aa8de693dad1d818a945ccf6eba37ff44..5ded8c9cbb35fe9b90b93451b35a42f8d4fe0942 100755
--- a/libcef/browser/prefs/renderer_prefs.cc
+++ b/libcef/browser/prefs/renderer_prefs.cc
@@ -44,6 +44,7 @@
 #include "ui/native_theme/native_theme.h"
 
 #if BUILDFLAG(IS_OHOS)
+#include "base/ohos/sys_info_utils.h"
 #include "content/public/browser/render_widget_host.h"
 #include "libcef/browser/osr/render_widget_host_view_osr.h"
 #endif
@@ -453,7 +454,7 @@ void SetCefPrefs(const CefBrowserSettings& cef,
   web.blank_target_popup_intercept_enabled =
       cef.blank_target_popup_intercept_enabled;
 #endif
-  if (cef.viewport_meta_enabled.has_value())
+  if (!base::ohos::IsPcDevice() && cef.viewport_meta_enabled.has_value())
     web.viewport_meta_enabled = cef.viewport_meta_enabled.value();
   web.autoplay_policy =
       cef.user_gesture_required