Hi! I have an embedded html iframe. When a user clicks the thumbnail of the attachment, the pop up window turns black. I can see the thumbnail of the document attachment behind the black overlay. How can I get rid of the black overlay? THANK YOU!!
Please note that Wix does not provide support for html code that has been provided by third party providers as they have not had the chance and time to fully test it on their own platform and servers etc.
https://support.wix.com/en/article/using-iframes-to-display-visible-content-on-your-site#guidelines-and-limitations-1
If you are having an issue with html code that you have added to your Wix site from a third party, then you are much better suited going back through that third parties own support team and asking them for help and support on it.
They should be able to tell you how to integrate it fully with Wix and not just expect Wix to help you instead,