0
0
mirror of https://github.com/twbs/bootstrap.git synced 2024-12-05 17:24:20 +01:00
Bootstrap/site/content/docs/5.0/components/breadcrumb.md

97 lines
3.9 KiB
Markdown
Raw Normal View History

2014-07-12 10:03:13 +02:00
---
layout: docs
2014-07-12 10:03:13 +02:00
title: Breadcrumb
2017-05-28 08:01:14 +02:00
description: Indicate the current page's location within a navigational hierarchy that automatically adds separators via CSS.
group: components
toc: true
2014-07-12 10:03:13 +02:00
---
2017-09-26 13:50:35 +02:00
## Example
Use an ordered or unordered list with linked list items to create a minimally styled breadcrumb. Use our utilities to add additional styles as desired.
{{< example >}}
<nav aria-label="breadcrumb">
2017-08-26 04:39:13 +02:00
<ol class="breadcrumb">
<li class="breadcrumb-item active" aria-current="page">Home</li>
</ol>
</nav>
<nav aria-label="breadcrumb">
2017-08-26 04:39:13 +02:00
<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">
2017-08-26 04:39:13 +02:00
<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 >}}
2017-08-26 04:39:13 +02:00
## Dividers
Dividers 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 modifying a local CSS custom property `--bs-breadcrumb-divider`, or through the `$breadcrumb-divider` Sass variable — and `$breadcrumb-divider-flipped` for its RTL counterpart, if needed. We default to our Sass variable, which is set as a fallback to the custom property. This way, you get a global divider that you can override without recompiling CSS at any time.
{{< example >}}
<nav style="--bs-breadcrumb-divider: '>';" 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>
{{< /example >}}
When modifying via Sass, the [quote](https://sass-lang.com/documentation/modules/string#quote) function is required to generate the quotes around a string. For example, using `>` as the divider, you can use this:
2018-04-11 16:19:25 +02:00
```scss
$breadcrumb-divider: quote(">");
```
It's also possible to use an **embedded SVG icon**. Apply it via our CSS custom property, or use the Sass variable.
{{< example >}}
<nav style="--bs-breadcrumb-divider: url(&#34;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&#34;);" 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>
{{< /example >}}
```scss
$breadcrumb-divider: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='8' height='8'%3E%3Cpath d='M2.5 0L1 1.5 3.5 4 1 6.5 2.5 8l4-4-4-4z' fill='currentColor'/%3E%3C/svg%3E");
```
2020-11-30 06:45:57 +01:00
You can also remove the divider setting `--bs-breadcrumb-divider: '';` (empty strings in CSS custom properties counts as a value), or setting the Sass variable to `$breadcrumb-divider: none;`.
{{< example >}}
2020-11-30 06:45:57 +01:00
<nav style="--bs-breadcrumb-divider: '';" 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>
{{< /example >}}
```scss
$breadcrumb-divider: none;
```
2017-08-26 04:39:13 +02:00
## 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).
## Sass
### Variables
{{< scss-docs name="breadcrumb-variables" file="scss/_variables.scss" >}}