Filters the HTML attributes applied to a menu list element.

Parameters

$attsarray

The HTML attributes applied to the <ul> element, empty strings are ignored.

• class string
  HTML CSS class attribute.

$argsstdClass

An object of wp_nav_menu() arguments.

$depthint

Depth of menu item. Used for padding.

Source

$atts       = apply_filters( 'nav_menu_submenu_attributes', $atts, $args, $depth );

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