#poststuff #post-body.columns-2 {
    margin-right: 300px;
    dispay:flex important;
    flex-direction:column !important;
}

function wpdocs_selectively_enqueue_admin_script( $hook ) {
    if ( 'toplevel_page_kita-general-settings' != $hook ) {
        return;
    }
    // wp_enqueue_script( 'my_custom_script', plugin_dir_url( __FILE__ ) . 'myscript.js', array(), '1.0' );
    wp_enqueue_style( 'kita_options_page', get_template_directory_uri() . '/css/kita-admin.css' );


}
add_action( 'admin_enqueue_scripts', 'wpdocs_selectively_enqueue_admin_script' );