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.
.progress as a wrapper to indicate the max value of the
progress bar..progress-bar to indicate the progress so far.
.progress-bar requires an inline style, utility class, or
custom CSS to set their width..progress-bar also requires some role and
aria attributes to make it accessible.
Put that all together, and you have the following examples.
We only set a height value on the .progress, so if you
change that value the inner .progress-bar will automatically resize
accordingly.
The striped gradient can also be animated. Add .progress-bar-animated to
.progress-bar to animate the stripes right to left via CSS3 animations.
Add labels to your progress bars by placing text within the
.progress-bar.
Use background utility classes to change the appearance of individual progress bars.
Include multiple progress bars in a progress component if you need.
Add .progress-bar-striped to any .progress-bar to apply a
stripe via CSS gradient over the progress bar’s background color.