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143 lines
6.0 KiB
Markdown
143 lines
6.0 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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## 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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- We use the inner `.progress-bar` to indicate the progress so far.
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- The `.progress-bar` requires an inline style, utility class, or custom CSS to set their width.
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- The `.progress-bar` also requires some `role` and `aria` attributes to make it accessible.
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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">
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<div class="progress-bar" role="progressbar" aria-valuenow="0" aria-valuemin="0" aria-valuemax="100"></div>
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</div>
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<div class="progress">
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<div class="progress-bar" role="progressbar" style="width: 25%" aria-valuenow="25" aria-valuemin="0" aria-valuemax="100"></div>
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</div>
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<div class="progress">
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<div class="progress-bar" role="progressbar" style="width: 50%" aria-valuenow="50" aria-valuemin="0" aria-valuemax="100"></div>
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</div>
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<div class="progress">
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<div class="progress-bar" role="progressbar" style="width: 75%" aria-valuenow="75" aria-valuemin="0" aria-valuemax="100"></div>
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</div>
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<div class="progress">
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<div class="progress-bar" role="progressbar" style="width: 100%" aria-valuenow="100" aria-valuemin="0" aria-valuemax="100"></div>
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</div>
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{{< /example >}}
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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 progress.
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{{< example >}}
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<div class="progress">
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<div class="progress-bar w-75" role="progressbar" aria-valuenow="75" aria-valuemin="0" aria-valuemax="100"></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">
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<div class="progress-bar" role="progressbar" style="width: 25%;" aria-valuenow="25" aria-valuemin="0" aria-valuemax="100">25%</div>
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</div>
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{{< /example >}}
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## Height
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We only set a `height` value on the `.progress`, 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" style="height: 1px;">
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<div class="progress-bar" role="progressbar" style="width: 25%;" aria-valuenow="25" aria-valuemin="0" aria-valuemax="100"></div>
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</div>
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<div class="progress" style="height: 20px;">
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<div class="progress-bar" role="progressbar" style="width: 25%;" aria-valuenow="25" aria-valuemin="0" aria-valuemax="100"></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">
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<div class="progress-bar bg-success" role="progressbar" style="width: 25%" aria-valuenow="25" aria-valuemin="0" aria-valuemax="100"></div>
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</div>
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<div class="progress">
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<div class="progress-bar bg-info" role="progressbar" style="width: 50%" aria-valuenow="50" aria-valuemin="0" aria-valuemax="100"></div>
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</div>
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<div class="progress">
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<div class="progress-bar bg-warning" role="progressbar" style="width: 75%" aria-valuenow="75" aria-valuemin="0" aria-valuemax="100"></div>
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</div>
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<div class="progress">
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<div class="progress-bar bg-danger" role="progressbar" style="width: 100%" aria-valuenow="100" aria-valuemin="0" aria-valuemax="100"></div>
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</div>
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{{< /example >}}
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## Multiple bars
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Include multiple progress bars in a progress component if you need.
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{{< example >}}
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<div class="progress">
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<div class="progress-bar" role="progressbar" style="width: 15%" aria-valuenow="15" aria-valuemin="0" aria-valuemax="100"></div>
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<div class="progress-bar bg-success" role="progressbar" style="width: 30%" aria-valuenow="30" aria-valuemin="0" aria-valuemax="100"></div>
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<div class="progress-bar bg-info" role="progressbar" style="width: 20%" aria-valuenow="20" aria-valuemin="0" aria-valuemax="100"></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">
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<div class="progress-bar progress-bar-striped" role="progressbar" style="width: 10%" aria-valuenow="10" aria-valuemin="0" aria-valuemax="100"></div>
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</div>
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<div class="progress">
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<div class="progress-bar progress-bar-striped bg-success" role="progressbar" style="width: 25%" aria-valuenow="25" aria-valuemin="0" aria-valuemax="100"></div>
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</div>
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<div class="progress">
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<div class="progress-bar progress-bar-striped bg-info" role="progressbar" style="width: 50%" aria-valuenow="50" aria-valuemin="0" aria-valuemax="100"></div>
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</div>
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<div class="progress">
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<div class="progress-bar progress-bar-striped bg-warning" role="progressbar" style="width: 75%" aria-valuenow="75" aria-valuemin="0" aria-valuemax="100"></div>
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</div>
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<div class="progress">
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<div class="progress-bar progress-bar-striped bg-danger" role="progressbar" style="width: 100%" aria-valuenow="100" aria-valuemin="0" aria-valuemax="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">
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<div class="progress-bar progress-bar-striped progress-bar-animated" role="progressbar" aria-valuenow="75" aria-valuemin="0" aria-valuemax="100" style="width: 75%"></div>
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</div>
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{{< /example >}}
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## Sass
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### 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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