0
0
mirror of https://github.com/twbs/bootstrap.git synced 2024-12-13 01:08:58 +01:00
Bootstrap/site/content/docs/4.3/components/breadcrumb.md
2019-08-14 22:40:46 +03:00

58 lines
2.1 KiB
Markdown

---
layout: docs
title: Breadcrumb
description: Indicate the current page's location within a navigational hierarchy that automatically adds separators via CSS.
group: components
---
## Example
{{< example >}}
<nav aria-label="breadcrumb">
<ol class="breadcrumb">
<li class="breadcrumb-item active" aria-current="page">Home</li>
</ol>
</nav>
<nav aria-label="breadcrumb">
<ol class="breadcrumb">
<li class="breadcrumb-item"><a href="#">Home</a></li>
<li class="breadcrumb-item active" aria-current="page">Library</li>
</ol>
</nav>
<nav aria-label="breadcrumb">
<ol class="breadcrumb">
<li class="breadcrumb-item"><a href="#">Home</a></li>
<li class="breadcrumb-item"><a href="#">Library</a></li>
<li class="breadcrumb-item active" aria-current="page">Data</li>
</ol>
</nav>
{{< /example >}}
## Changing the separator
Separators are automatically added in CSS through [`::before`](https://developer.mozilla.org/en-US/docs/Web/CSS/::before) and [`content`](https://developer.mozilla.org/en-US/docs/Web/CSS/content). They can be changed by changing `$breadcrumb-divider`. The [quote](https://sass-lang.com/documentation/functions/string#quote) function is needed to generate the quotes around a string, so if you want `>` as separator, you can use this:
```scss
$breadcrumb-divider: quote(">");
```
It's also possible to use an **embedded SVG icon**:
```scss
$breadcrumb-divider: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='8' height='8'%3E%3Cpath d='M2.5 0L1 1.5 3.5 4 1 6.5 2.5 8l4-4-4-4z' fill='currentColor'/%3E%3C/svg%3E");
```
The separator can be removed by setting `$breadcrumb-divider` to `none`:
```scss
$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](https://www.w3.org/TR/wai-aria-practices/#breadcrumb).