Hey there,
I’m not sure if I understand the question and unfortunately, your code got rendered.
Buttons may be defined by other CSS classes of your theme (or the block editor, in case you’re useing it).
if you can manipulate the code, simply add a class to your button/element like on our example:
<a href="#" class="wp-video-popup button">Play Video</a>
Hope that helps.
To create a button, I have to already use a css class, so my question is, is it possible to combine 2 classes so this code opens the youtube player too?
<a class="button" href="https://waterhaul.co/product/fitzroy-prescription/">Prescription Orders</a>
That would work, you can simply add 2 classes like this:
<a class="button wp-video-popup" href="https://waterhaul.co/product/fitzroy-prescription/">Prescription Orders</a>
