<div class="main">
<nav class="cbp-hsmenu-wrapper" id="cbp-hsmenu-wrapper">
<div class="cbp-hsinner">
<ul class="cbp-hsmenu">
<?php if ( has_nav_menu( 'menu1' ) ) { $menu1 = wp_nav_menu( array( 'container' => '', 'walker' => new wordpresskurumsal_menu ,'echo' => '0', 'theme_location' => 'menu1' ) ); $menu1son = preg_replace( array( '#^<ul[^>]*>#', '#</ul>$#' ), '', $menu1 ); echo $menu1son; } ?>
</ul>
</div>
</nav>
</div>

register_nav_menu( "menu1", "Üst Menü" );

class wordpresskurumsal_menu extends Walker_Nav_Menu {
  
// add classes to ul sub-menus
function start_lvl( &$output, $depth ) {
    // depth dependent classes
    $indent = ( $depth > 0  ? str_repeat( "\t", $depth ) : '' ); // code indent
    $display_depth = ( $depth + 1); // because it counts the first submenu as 0
  
    // build html
    $output .= "\n" . $indent . '<ul class="cbp-hssubmenu cbp-hssub-rows">' . "\n";
}

 //end of the sub menu wrap
    function end_lvl(&$output, $depth) {
            $output .= '</ul>';

    }
  
// add main/sub classes to li's and links
 function start_el( &$output, $item, $depth, $args ) {
    global $wp_query;
    $indent = ( $depth > 0 ? str_repeat( "\t", $depth ) : '' ); // code indent
  
    // depth dependent classes
    $depth_classes = array(
        ( $depth == 0 ? 'main-menu-item' : 'sub-menu-item' ),
        ( $depth >=2 ? 'sub-sub-menu-item' : '' ),
        ( $depth % 2 ? 'menu-item-odd' : 'menu-item-even' ),
        'menu-item-depth-' . $depth
    );
    $depth_class_names = esc_attr( implode( ' ', $depth_classes ) );
  
    // passed classes
    $classes = empty( $item->classes ) ? array() : (array) $item->classes;
    $class_names = esc_attr( implode( ' ', apply_filters( 'nav_menu_css_class', array_filter( $classes ), $item ) ) );
  
    // build html
    $output .= $indent . '<li>';
  
    // link attributes
    $attributes  = ! empty( $item->attr_title ) ? ' title="'  . esc_attr( $item->attr_title ) .'"' : '';
    $attributes .= ! empty( $item->target )     ? ' target="' . esc_attr( $item->target     ) .'"' : '';
    $attributes .= ! empty( $item->xfn )        ? ' rel="'    . esc_attr( $item->xfn        ) .'"' : '';
    $attributes .= ! empty( $item->url )        ? ' href="'   . esc_attr( $item->url        ) .'"' : '';
  
    $item_output = sprintf( '%1$s<a%2$s>%3$s%4$s%5$s</a>%6$s',
        $args->before,
        $attributes,
        $args->link_before,
        apply_filters( 'the_title', $item->title, $item->ID ),
        $args->link_after,
        $args->after
    );
  
    // build html
    $output .= apply_filters( 'walker_nav_menu_start_el', $item_output, $item, $depth, $args );
}
}