wp_nav_menu( array(
                        
                                'menu'   => 'primary',
                        
                                'walker' => new WPDocs_Walker_Nav_Menu()
                        
                                )
                        
                            );
                        
                            
                        
                            // Custom Nav Menu walker class.
                        
                            class WPDocs_Walker_Nav_Menu extends Walker_Nav_Menu {
                        
                            
                        
                            function start_lvl( &$output, $depth = 0, $args = array() ) {
                        
                            
                        
                                // Depth-dependent classes.
                        
                                $indent = ( $depth > 0  ? str_repeat( "\t", $depth ) : '' ); // code indent
                        
                                $display_depth = ( $depth + 1); // because it counts the first submenu as 0
                        
                            
                        
                                // Custom nav menu item custom field value i want to get in the $classes.
                        
                                $menu_color = '"style="background-color: $item->Description""';
                        
                            
                        
                                // Combine values of classes.
                        
                                $classes = array(
                        
                                    'dropdown-menu',
                        
                                    ( $display_depth % 2  ? 'menu-odd' : 'menu-even' ),
                        
                                    ( $display_depth >=2 ? 'sub-sub-menu' : '' ),
                        
                                    'menu-depth-' . $display_depth,
                        
                                    ''. $menu_color
                        
                                );
                        
                            
                        
                                $class_names = implode( ' ', $classes );
                        
                            
                        
                                // Build HTML for output.
                        
                                $output .=  ($depth == 0) ? "\n" . $indent . '<ul class="' . $class_names . '">' . "\n" . "\n <div class=\"megamenu-content\">\n"  . "\n<div class=\"row\">\n" : "\n<ul class=\"elementy-ul\">\n";
                        
                                }
                        
                            
                        
                            // Start the element output codes from here.....
                        
                            
                        
                            }
                        
                
             
            
                
                    
                            wp_nav_menu( array(
                        
                                'menu'   => 'primary',
                        
                                'walker' => new WPDocs_Walker_Nav_Menu()
                        
                                )
                        
                            );
                        
                            
                        
                            // Custom Nav Menu walker class.
                        
                            class WPDocs_Walker_Nav_Menu extends Walker_Nav_Menu {
                        
                            
                        
                            function start_lvl( &$output, $depth = 0, $args = array() ) {
                        
                            
                        
                                // Depth-dependent classes.
                        
                                $indent = ( $depth > 0  ? str_repeat( "\t", $depth ) : '' ); // code indent
                        
                                $display_depth = ( $depth + 1); // because it counts the first submenu as 0
                        
                            
                        
                                // Custom nav menu item custom field value i want to get in the $classes.
                        
                                $menu_color = '"style="background-color: $item->Description""';
                        
                            
                        
                                // Combine values of classes.
                        
                                $classes = array(
                        
                                    'dropdown-menu',
                        
                                    ( $display_depth % 2  ? 'menu-odd' : 'menu-even' ),
                        
                                    ( $display_depth >=2 ? 'sub-sub-menu' : '' ),
                        
                                    'menu-depth-' . $display_depth,
                        
                                    ''. $menu_color
                        
                                );
                        
                            
                        
                                $class_names = implode( ' ', $classes );
                        
                            
                        
                                // Build HTML for output.
                        
                                $output .=  ($depth == 0) ? "\n" . $indent . '<ul class="' . $class_names . '">' . "\n" . "\n <div class=\"megamenu-content\">\n"  . "\n<div class=\"row\">\n" : "\n<ul class=\"elementy-ul\">\n";
                        
                                }
                        
                            
                        
                            // Start the element output codes from here.....
                        
                            
                        
                            }