Anchors and ids don't match in Customize
Created by: Quy
For example:
<li><a href="#variables-alerts">Alerts</a></li>
<h2 id="alerts">Alerts</h2>
Created by: Quy
For example:
<li><a href="#variables-alerts">Alerts</a></li>
<h2 id="alerts">Alerts</h2>