Hey Mark. The issue is that the warning has to be visible at all times (i.e. – hugging the header or something of the sort.)
For reference, look at the homepage. It works perfectly because the Divi builder gives you access to the whole page. However, when you edit the product page and try to use the same method, anything you try to do is stuck in the product description which someone would have to scroll down to initially see.
I essentially need a way for the sticky element to be at the top of the page.
