I noticed that in the introduction of registration of a certain conference, they changed font sizes/colors and embeded urls to other webpages. Introduction is the first paragraph you are going to see in the registration page, just below the registration period/contact info line.
I wonder what kind of formatting language they used. Would it be markdown (then which version of markdown?) or plain html? I looked into the indico manual videos, but I could not find relevant information. “Markdown” was mentioned in several places, but I’m not sure if it applies to this case.
Secondly, I think it would be great to have a preview possibility of the registration page before making it public. Then I could test/modify the registration page and prevents errors before anyone supplies the registration information.