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

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

<div class="af-waiting af-component">
    <div class="inner-container">
        <div class="binding"></div>
        <div class="pad">
            <div class="line line1"></div>
            <div class="line line2"></div>
            <div class="line line3"></div>
        </div>
    </div>
</div>