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* Bump version to 5.3.0-alpha1 * Dist * Add docs versions updates * Update note in homepage hero Co-authored-by: Mark Otto <markdotto@gmail.com>
170 lines
8.0 KiB
Markdown
170 lines
8.0 KiB
Markdown
---
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layout: docs
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title: Progress
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description: Documentation and examples for using Bootstrap custom progress bars featuring support for stacked bars, animated backgrounds, and text labels.
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group: components
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toc: true
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---
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{{< callout info >}}
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**New markup in v5.3.0 —** We've deprecated the previous HTML structure for progress bars and replaced it with a more accessible one. The previous structure will continue to work until v6. [See what's changed in our migration guide.]({{< docsref "/migration#improved-markup-for-progress-bars" >}})
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{{< /callout >}}
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## How it works
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Progress components are built with two HTML elements, some CSS to set the width, and a few attributes. We don't use [the HTML5 `<progress>` element](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/progress), ensuring you can stack progress bars, animate them, and place text labels over them.
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- We use the `.progress` as a wrapper to indicate the max value of the progress bar.
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- The `.progress` wrapper also requires a `role="progress"` and `aria` attributes to make it accessible, including an accessible name (using `aria-label`, `aria-labelledby`, or similar).
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- We use the inner `.progress-bar` purely for the visual bar and label.
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- The `.progress-bar` requires an inline style, utility class, or custom CSS to set its width.
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- We provide a special `.progress-stacked` class to create multiple/stacked progress bars.
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Put that all together, and you have the following examples.
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{{< example >}}
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<div class="progress" role="progressbar" aria-label="Basic example" aria-valuenow="0" aria-valuemin="0" aria-valuemax="100">
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<div class="progress-bar" style="width: 0%"></div>
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</div>
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<div class="progress" role="progressbar" aria-label="Basic example" aria-valuenow="25" aria-valuemin="0" aria-valuemax="100">
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<div class="progress-bar" style="width: 25%"></div>
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</div>
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<div class="progress" role="progressbar" aria-label="Basic example" aria-valuenow="50" aria-valuemin="0" aria-valuemax="100">
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<div class="progress-bar" style="width: 50%"></div>
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</div>
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<div class="progress" role="progressbar" aria-label="Basic example" aria-valuenow="75" aria-valuemin="0" aria-valuemax="100">
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<div class="progress-bar" style="width: 75%"></div>
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</div>
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<div class="progress" role="progressbar" aria-label="Basic example" aria-valuenow="100" aria-valuemin="0" aria-valuemax="100">
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<div class="progress-bar" style="width: 100%"></div>
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</div>
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{{< /example >}}
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## Bar sizing
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### Width
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Bootstrap provides a handful of [utilities for setting width]({{< docsref "/utilities/sizing" >}}). Depending on your needs, these may help with quickly configuring the width of the `.progress-bar`.
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{{< example >}}
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<div class="progress" role="progressbar" aria-label="Basic example" aria-valuenow="75" aria-valuemin="0" aria-valuemax="100">
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<div class="progress-bar w-75"></div>
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</div>
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{{< /example >}}
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### Height
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You only set a `height` value on the `.progress` container, so if you change that value, the inner `.progress-bar` will automatically resize accordingly.
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{{< example >}}
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<div class="progress" role="progressbar" aria-label="Example 1px high" aria-valuenow="25" aria-valuemin="0" aria-valuemax="100" style="height: 1px">
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<div class="progress-bar" style="width: 25%"></div>
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</div>
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<div class="progress" role="progressbar" aria-label="Example 20px high" aria-valuenow="25" aria-valuemin="0" aria-valuemax="100" style="height: 20px">
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<div class="progress-bar" style="width: 25%"></div>
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</div>
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{{< /example >}}
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## Labels
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Add labels to your progress bars by placing text within the `.progress-bar`.
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{{< example >}}
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<div class="progress" role="progressbar" aria-label="Example with label" aria-valuenow="25" aria-valuemin="0" aria-valuemax="100">
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<div class="progress-bar" style="width: 25%">25%</div>
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</div>
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{{< /example >}}
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## Backgrounds
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Use background utility classes to change the appearance of individual progress bars.
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{{< example >}}
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<div class="progress" role="progressbar" aria-label="Success example" aria-valuenow="25" aria-valuemin="0" aria-valuemax="100">
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<div class="progress-bar bg-success" style="width: 25%"></div>
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</div>
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<div class="progress" role="progressbar" aria-label="Info example" aria-valuenow="50" aria-valuemin="0" aria-valuemax="100">
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<div class="progress-bar bg-info" style="width: 50%"></div>
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</div>
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<div class="progress" role="progressbar" aria-label="Warning example" aria-valuenow="75" aria-valuemin="0" aria-valuemax="100">
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<div class="progress-bar bg-warning" style="width: 75%"></div>
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</div>
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<div class="progress" role="progressbar" aria-label="Danger example" aria-valuenow="100" aria-valuemin="0" aria-valuemax="100">
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<div class="progress-bar bg-danger" style="width: 100%"></div>
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</div>
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{{< /example >}}
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{{< callout info >}}
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{{< partial "callouts/warning-color-assistive-technologies.md" >}}
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{{< /callout >}}
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## Multiple bars
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You can include multiple progress components inside a container with `.progress-stacked` to create a single stacked progress bar. Note that in this case, the styling to set the visual width of the progress bar *must* be applied to the `.progress` elements, rather than the `.progress-bar`s.
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{{< example >}}
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<div class="progress-stacked">
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<div class="progress" role="progressbar" aria-label="Segment one" aria-valuenow="15" aria-valuemin="0" aria-valuemax="100" style="width: 15%">
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<div class="progress-bar"></div>
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</div>
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<div class="progress" role="progressbar" aria-label="Segment two" aria-valuenow="30" aria-valuemin="0" aria-valuemax="100" style="width: 30%">
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<div class="progress-bar bg-success"></div>
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</div>
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<div class="progress" role="progressbar" aria-label="Segment three" aria-valuenow="20" aria-valuemin="0" aria-valuemax="100" style="width: 20%">
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<div class="progress-bar bg-info"></div>
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</div>
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</div>
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{{< /example >}}
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## Striped
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Add `.progress-bar-striped` to any `.progress-bar` to apply a stripe via CSS gradient over the progress bar's background color.
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{{< example >}}
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<div class="progress" role="progressbar" aria-label="Default striped example" aria-valuenow="10" aria-valuemin="0" aria-valuemax="100">
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<div class="progress-bar progress-bar-striped" style="width: 10%"></div>
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</div>
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<div class="progress" role="progressbar" aria-label="Success striped example" aria-valuenow="25" aria-valuemin="0" aria-valuemax="100">
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<div class="progress-bar progress-bar-striped bg-success" style="width: 25%"></div>
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</div>
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<div class="progress" role="progressbar" aria-label="Info striped example" aria-valuenow="50" aria-valuemin="0" aria-valuemax="100">
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<div class="progress-bar progress-bar-striped bg-info" style="width: 50%"></div>
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</div>
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<div class="progress" role="progressbar" aria-label="Warning striped example" aria-valuenow="75" aria-valuemin="0" aria-valuemax="100">
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<div class="progress-bar progress-bar-striped bg-warning" style="width: 75%"></div>
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</div>
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<div class="progress" role="progressbar" aria-label="Danger striped example" aria-valuenow="100" aria-valuemin="0" aria-valuemax="100">
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<div class="progress-bar progress-bar-striped bg-danger" style="width: 100%"></div>
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</div>
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{{< /example >}}
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## Animated stripes
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The striped gradient can also be animated. Add `.progress-bar-animated` to `.progress-bar` to animate the stripes right to left via CSS3 animations.
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{{< example >}}
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<div class="progress" role="progressbar" aria-label="Animated striped example" aria-valuenow="75" aria-valuemin="0" aria-valuemax="100">
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<div class="progress-bar progress-bar-striped progress-bar-animated" style="width: 75%"></div>
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</div>
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{{< /example >}}
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## CSS
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### Variables
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{{< added-in "5.2.0" >}}
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As part of Bootstrap's evolving CSS variables approach, progress bars now use local CSS variables on `.progress` for enhanced real-time customization. Values for the CSS variables are set via Sass, so Sass customization is still supported, too.
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{{< scss-docs name="progress-css-vars" file="scss/_progress.scss" >}}
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### Sass variables
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{{< scss-docs name="progress-variables" file="scss/_variables.scss" >}}
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### Keyframes
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Used for creating the CSS animations for `.progress-bar-animated`. Included in `scss/_progress-bar.scss`.
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{{< scss-docs name="progress-keyframes" file="scss/_progress.scss" >}}
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