We switched to the new UI in March, and since then we have been experiencing issues with our Canvas site viewing significantly different on different computers and screen resolutions. The difference is very noticeable and it is not just between desktop and mobile, but between different resolutions on desktops as well. We never had this problem before we switched to the new interface. Has anybody else encountered this issue? Is there an easier way to fix it without having to resort to a series of CSS Media Queries?