 <p>I had a similar request from a client. but instead of an "x" to close the pop up it was to make it fade after x number of seconds.</p> <p>see the see this link: <a href="http://ausauraair.com.au/product/ausaura-air/" rel="nofollow noreferrer">http://ausauraair.com.au/product/ausaura-air/</a></p> <p>by adding some jQuery i was able to make the box fade.</p> <pre><code>jQuery(document).ready(function( $ ) { $('.woocommerce-message').fadeTo(7000,1).fadeOut(2000); }); </code></pre> <p>you could possibly use a similar technique but add a "x" button and then an on-click function to make the box close on click.</p>