Use the class mzp-t-click
to call attention to some action the user should take.
<aside class="mzp-c-notification-bar mzp-t-click">
<button class="mzp-c-notification-bar-button" type="button">Close notification</button>
<p><a href="#" class="mzp-c-notification-bar-cta">Click this thing</a></p>
</aside>