fix content position

src/Entity/Browser/Container/Tab/Page.php

@@ -52,8 +52,11 @@ class Page
             $this
         );
 
-        $this->gtk->add(
-            $this->content->gtk
+        $this->gtk->pack_start(
+            $this->content->gtk,
+            true,
+            true,
+            0
         );
 
         // Init response bar

src/Entity/Browser/Container/Tab/Page/Content.php

@@ -41,14 +41,6 @@ class Content
             $this->_margin
         );
 
-        $this->gtk->set_propagate_natural_height( // instead of pack to parent
-            true
-        );
-
-        $this->gtk->set_propagate_natural_width(
-            true
-        );
-
         // Init viewport
         // to integrate scrolled window features for data label
         $this->viewport = new Viewport(