title: how to css md-tab label in angularjs
body: <p><strong>Markup :</strong></p>
  
  <pre><code>md-tab label="Current ({{ctrl.ongoing_assignments.length}})"
  </code></pre>
  
  <p><br>
  <strong>Required Output :</strong></p>
  
  <blockquote>
    <p>Current (1) &lt;===== i want the number will be in red background with round shape like notification in facebook </p>
  </blockquote>