Use class .progress-bar-{color-name} to add different colors to progressbar.

Use class progress-label. to add label.

Add .progress-bar-striped to any .progress-bar to apply a stripe via CSS gradient over the progress bar’s background color.

To get progressbar with animated effect, add .progress-bar-animated with .progress-bar class.

For Default progress, No size class needed. you can use class .progress-sm with .progress to change size of your progress bar.