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twbs--bootstrap/docs/components/progress.md
Mark Otto a0141aa38e Rewrite progress component without <progress> element 
- <progress> element didn't allow animation, labels overlaid, multiple bars, etc.

- Revamps CSS to use something more similar to v3's implementation

- Ditches variant mixin for `bg-` utils

- Rebuilds docs to match, including adding a new Height section for customizing that.

Only potential remaining todo is adding `.sr-only` instances to within the bar. Unsure if that's necessary.
2016-12-30 22:46:00 -08:00

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layout title description group
docs Progress Documentation and examples for using Bootstrap progress bars. components

Use our custom progress component for displaying simple or complex progress bars. We don't use the HTML5 <progress> element, ensuring you can stack progress bars, animate them, and place text labels over them.

Contents

  • Will be replaced with the ToC, excluding the "Contents" header {:toc}

How it works

Progress components are built with two HTML elements, some CSS to set the width, and a few attributes.

  • 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 or custom CSS to set their width.
  • The .progress-bar also requires some role and aria attributes to make it accessible.

Put that all together, and you have the following examples.

{% example html %}

{% endexample %}

Customizing

Customize the appearance of your progress bars with custom CSS, background utilities, stripes, and more.

Labels

Add labels to your progress bars by placing text within the .progress-bar.

{% example html %}

25%
{% endexample %}

Height

We only set a height value on the .progress-bar, so if you change that value the outer .progress will automatically resize accordingly.

{% example html %}

{% endexample %}

Backgrounds

Use background utility classes to change the appearance of individual progress bars.

{% example html %}

{% endexample %}

Multiple bars

Include multiple progress bars in a progress component if you need.

{% example html %}

{% endexample %}

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 %}

{% endexample %}

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.

Animated progress bars don't work in Opera 12—as they don't support CSS3 animations.

{% highlight html %}

{% endhighlight %}