--- title: Breadcrumbs description: | Breadcrumbs are links at the top of a page which indicate the relationship of the current page to the larger system page structure. While many browsers include 'Back' functionality to support a similar traversal, this functionality is not reliable as a result of form submissions or 'deep linking' - when users get to a lower-level page directly, without having visited it's parent pages. Breadcrumbs avoid these pitfalls by providing discrete links representing the intended hierarchy. usage: | Typically, a breadcrumb should be used when viewing a page which is more than 1 level deep in a page hierarchy, and will then provide links back to each level of the hierarchy above it (e.g. Plants > Vegetables > Carrots). Top level pages (e.g. Plants) do not require breadcrumbs. ---