I've embedded this script which creates a booking button for a 3rd party system.
However the button sits left aligned in the content box and I don't know enough to edit it to have it centred.
The button sits in the middle of the site, so scalling makes it jump around a lot. Help?
Here's the site https://www.charlottecummings.nz/
<script id="setmore_script" type="text/javascript" src="https://my.setmore.com/webapp/js/src/others/setmore_iframe.js"></script><a id="Setmore_button_iframe" class="" style="float:none" href="https://booking.setmore.com/scheduleappointment/45f0b7ef-cae6-4d0c-8808-1354daa6242c"><img border="none" src="https://storage.googleapis.com/full-assets/setmore/images/1.0/Settings/book-now-blue.svg" alt="Book an appointment with Charlotte Cummings using Setmore" /></a>