acha-framework/src/frontend/core/scripts/directives/progressbar/template.html

is a modular framework on both client (angular.js) and server (node.js) side, it provides security, orm, ioc, obfuscation and ...

<div ng-show="visible"
     class="progress af-component {{::cssClass}} {{::(border?'progress-bordered':'')}}">
    <div class="progress-bar progress-bar-primary"
         role="progressbar"
         ng-style="{width: model + '%'}">
        <span class="sr-only">{{model}}% Complete (success)</span>
    </div>
</div>