Hi Ted Hopton - we have a few iFrames, and they seem to be working, but, our upgrade to 2016.3 on Friday knocked out a html / css feature we have - not sure if they may be related, but will keep you posted
Hi Ted Hopton - had my web team take a look, and this is what the responded with - not sure if it would affect you too?
The above error is happening when trying to do a document load on carousel.js. The error highlights a $j undefined error which typically means that the jquery library files are missing.
Reviewing through your customer group I see where you submitted a case for this behavior and it was linked with CLOUD-2550 (Custom HTML Tile does not use the complete width in a page ), which is set to be resolved starting in the maintenance release scheduled for Dec 6-8th.