• Breadcrumb
    • Example
    • Changing the separator
    • Accessibility

    Breadcrumb

    Indicate the current page’s location within a navigational hierarchy that automatically adds separators via CSS.

    Example

    Breadcrumb - 图1

    1. <nav aria-label="breadcrumb">
    2. <ol class="breadcrumb">
    3. <li class="breadcrumb-item active" aria-current="page">Home</li>
    4. </ol>
    5. </nav>
    6. <nav aria-label="breadcrumb">
    7. <ol class="breadcrumb">
    8. <li class="breadcrumb-item"><a href="#">Home</a></li>
    9. <li class="breadcrumb-item active" aria-current="page">Library</li>
    10. </ol>
    11. </nav>
    12. <nav aria-label="breadcrumb">
    13. <ol class="breadcrumb">
    14. <li class="breadcrumb-item"><a href="#">Home</a></li>
    15. <li class="breadcrumb-item"><a href="#">Library</a></li>
    16. <li class="breadcrumb-item active" aria-current="page">Data</li>
    17. </ol>
    18. </nav>

    Changing the separator

    Separators are automatically added in CSS through ::before and content. They can be changed by changing $breadcrumb-divider. The quote function is needed to generate the quotes around a string, so if you want > as separator, you can use this:

    1. $breadcrumb-divider: quote(">");

    It’s also possible to use a base64 embedded SVG icon:

    1. $breadcrumb-divider: url(data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI4IiBoZWlnaHQ9IjgiPjxwYXRoIGQ9Ik0yLjUgMEwxIDEuNSAzLjUgNCAxIDYuNSAyLjUgOGw0LTQtNC00eiIgZmlsbD0iY3VycmVudENvbG9yIi8+PC9zdmc+);

    The separator can be removed by setting $breadcrumb-divider to none:

    1. $breadcrumb-divider: none;

    Accessibility

    Since breadcrumbs provide a navigation, it’s a good idea to add a meaningful label such as aria-label="breadcrumb" to describe the type of navigation provided in the <nav> element, as well as applying an aria-current="page" to the last item of the set to indicate that it represents the current page.

    For more information, see the WAI-ARIA Authoring Practices for the breadcrumb pattern.