Basic example

Default progress bar.

With label

Remove the <span> with .sr-only class from within the progress bar to show a visible percentage.

Stacked

Place multiple bars into the same .progress to stack them.

Squared

You can crate squared progress bars by adding .progress-squared class to .progress.

Animated

Add .active to .progress-bar-striped to animate the stripes right to left. Not available in IE9 and below.

Contextual alternatives

Progress bar with color state.

Striped

Uses a gradient to create a striped effect. Not available in IE8.

Sizing

You can also change progress bar size easily by adding one of .progress-xs .progress-sm .progress-md .progress-lg classes to .progress.

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For more info you can visit bootstrap progress bar plugin here.