diff --git a/src/wp-includes/class-walker-nav-menu.php b/src/wp-includes/class-walker-nav-menu.php
index 4c1a1f2..2c621a9 100644
a
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b
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class Walker_Nav_Menu extends Walker { |
58 | 58 | $n = "\n"; |
59 | 59 | } |
60 | 60 | $indent = str_repeat( $t, $depth ); |
61 | | $output .= "{$n}{$indent}<ul class=\"sub-menu\">{$n}"; |
| 61 | |
| 62 | /** |
| 63 | * Filters the CSS class(es) applied to a menu list element. |
| 64 | * |
| 65 | * @since 4.8.0 |
| 66 | * |
| 67 | * @param array $classes The CSS classes that are applied to the menu `<ul>` element. |
| 68 | * @param stdClass $args An object of wp_nav_menu() arguments. |
| 69 | * @param int $depth Depth of menu item. Used for padding. |
| 70 | */ |
| 71 | |
| 72 | $classes = array( 'sub-menu' ); |
| 73 | $classes = apply_filters( 'nav_menu_submenu_css_class', $classes, $args, $depth ); |
| 74 | $class_names = join( ' ', $classes ); |
| 75 | |
| 76 | $output .= "{$n}{$indent}<ul class='" . esc_attr( $class_names ) . "'>{$n}"; |
62 | 77 | } |
63 | 78 | |
64 | 79 | /** |