We add the .menu css class to the popover main node, not its contents
node.
*
* #GtkPopoverMenu is just a subclass of #GtkPopover that adds
* custom content to it, therefore it has the same CSS nodes.
- * It is one of the cases that add a .menu style class to the
- * popover's contents node.
+ * It is one of the cases that add a .menu style class to
+ * the popover's main node.
*/
typedef struct _GtkPopoverMenuClass GtkPopoverMenuClass;