Removed '**Animated progress bars don't work in Opera 12**—as they don't support CSS3 animations.' note. Bootstrap 4 doesn't (and doesn't need to) support the ancient Opera 12 released in 2012 with a 0.04% marketshare so no need to mention.
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layout | title | description | group | toc |
---|---|---|---|---|
docs | Progress | Documentation and examples for using Bootstrap custom progress bars featuring support for stacked bars, animated backgrounds, and text labels. | components | true |
How it works
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, ensuring you can stack progress bars, animate them, and place text labels over them.
- We use the
.progress
as a wrapper to indicate the max value of the progress bar. - We use the inner
.progress-bar
to indicate the progress so far. - The
.progress-bar
requires an inline style, utility class, or custom CSS to set their width. - The
.progress-bar
also requires somerole
andaria
attributes to make it accessible.
Put that all together, and you have the following examples.
{% example html %}
Bootstrap provides a handful of [utilities for setting width]({{ site.baseurl }}/docs/{{ site.docs_version }}/utilities/sizing/). Depending on your needs, these may help with quickly configuring progress.
{% example html %}
Labels
Add labels to your progress bars by placing text within the .progress-bar
.
{% example html %}
Height
We only set a height
value on the .progress
, so if you change that value the inner .progress-bar
will automatically resize accordingly.
{% example html %}
Backgrounds
Use background utility classes to change the appearance of individual progress bars.
{% example html %}
Multiple bars
Include multiple progress bars in a progress component if you need.
{% example html %}
Striped
Add .progress-bar-striped
to any .progress-bar
to apply a stripe via CSS gradient over the progress bar's background color.
{% example html %}
Animated stripes
The striped gradient can also be animated. Add .progress-bar-animated
to .progress-bar
to animate the stripes right to left via CSS3 animations.
{% highlight html %}