Positioning of Menu Content relative to the Menu item

A community member is having trouble with their navbar, where the child dropdown elements are not displaying as absolute to the parent dropdown. They have tried setting the menu item to Position: Relative and the menu content to Absolute with left: 0px, top: 0px, but the dropdown is not aligning under the nav menu items as expected. In the comments, another community member suggests that "Option 1 is the best for my needs", but there is no explicitly marked answer.