Progress components are built with two HTML elements, some CSS to set the width, and a few attributes.
Sizing
Use .m-progress--sm class to change progress size to small:
Use .m-progress--lg class to change progress size to large:
Custom Height
Set a height value on the .progress-bar, so if you change that value the outer .progress will automatically resize accordingly.
Backgrounds
Use state utility classes to change the appearance of individual progress bars.
Multiple 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.
The striped gradient can also be animated. Add .progress-bar-animated to .progress-bar to animate the stripes right to left via CSS3 animations.