Progress bars See documentation

Default progress bar, where the value is the % of the progression:
Html::progress(64)
The status:
Html::progress(36, array('status' => 'success'))
success
info
warning
danger
The third parameter let's you the ability to add some text whithin the bar:
Html::progress(46, array('status' => 'info'), '56 sec remaining')
56 sec remaining
The striped attribute generates a striped effect:
Html::progress(36, array('striped' => true))
The active, in conjonction with striped, animates the stripes
Html::progress(36, array('striped' => true, 'active' => true))

Stacked progress bar

Add multiple bars into the same progress instance
pro = Html::progress();
$pro->bar(15);
$pro->bar(15, array('status' => 'info'))->tooltip('Second Bar');
$pro->bar(15, array('status' => 'warning'), 'End');
End
Setup attributes for all bars, and add text whithin each:
$pro = Html::progress(array('active' => true, 'striped' => true));
$pro->bar(30, array('status' => 'success'), 'This');
$pro->bar(30, array('status' => 'warning'), 'is');
$pro->bar(30, array('status' => 'danger'), 'Reggae');
This
is
Reggae