My iframes at:
https://ferienhaus-schwarzwald-todtnauberg.de/360panorama/index.html
have a fat white border after starting the tour in the fancyboxiframe. How can i customzize the css settings for fancybox 3 or 4? I want to make the iframe 100% instead of 80% and I want to set the white padding frame from 36px to 0px.
I found a very small doumentation at https://fancyapps.com/docs/ui/fancybox/ . That seems not to be enought so solve my problem.