how to use button with fancy box?

Goodday!

How can i use fancy box pop ups with a button instead of a link?

This code i use to get fancy box with a link:

<h1>Book us</h1>

<div style=”display:none” class=”fancybox-hidden”>
<div id=”contact_form_pop”>
[contact-form-7 id="2244" title="Booking form"]
</div>
</div>

Greetings Deep