Ticket #42001: 42001.1.patch

src/wp-includes/widgets/class-wp-widget-custom-html.php

@@ -47 +47 @@
                         'customize_selective_refresh' => true,
                 );
                 $control_ops = array(
-                        'width' => 400,
-                        'height' => 350,
+                        'width' => 250,
+                        'height' => 250,
                 );
                 parent::__construct( 'custom_html', __( 'Custom HTML' ), $widget_ops, $control_ops );
         }

src/wp-includes/widgets/class-wp-widget-text.php

@@ -36 +36 @@
                         'customize_selective_refresh' => true,
                 );
                 $control_ops = array(
-                        'width' => 400,
-                        'height' => 350,
+                        'width' => 250,
+                        'height' => 250,
                 );
                 parent::__construct( 'text', __( 'Text' ), $widget_ops, $control_ops );
         }