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I dont want to have dropdown (select - options) in my wordpress menu, even in mobile or lower width devices. I know I can use css to hide it, but I want to remove it at all. I googled for an hour and I found that I should use a custom walker on Roots!!!! but I dont know whats that and how. please help me, I am a newby.

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Which Theme do you use? – kuchenundkakao Jul 20 '14 at 8:17
meadowhill - wordpress.org/themes/meadowhill – biji buji Jul 20 '14 at 13:01

Since WP v3.3.0 you can use filter wp_nav_menu_args to alter arguments of function wp_nav_menu that used to display a navigation menu. Add this code in functions.php of your theme files. You can change functions name wpse155177_nav_menu_args.

* @see wp_nav_menu()
* @return array $args Array of wp_nav_menu() arguments.
add_filter( 'wp_nav_menu_args', 'wpse155177_nav_menu_args', 1, 1 );
function wpse155177_nav_menu_args( $args )
    //lookup theme_location ie: header-menu
    if ( isset( $args['theme_location'] ) && 'header-menu' == $args['theme_location'] ) {
        $args['depth'] = 1; //levels of the hierarchy are to be included

    return $args;
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Simply try to move in menu settings "menu voices"(pages as :home, who we are, what to do, etc) alling them one under another.

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We can use depth parameter of wp_nav_menu to set how many levels menu walker traverses.

wp_nav_menu( array( 'menu_id'=>'nav', 'theme_location'=>'header-menu' , 'depth' => 1) );

You can create a child theme so that updates won't override during updates.

Create child theme and copy code from header.php of parent theme then replace the code

 wp_nav_menu( array( 'menu_id'=>'nav', 'theme_location'=>'header-menu' ) );

with the above code.

More Info: child theme

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