I have an app which uses static macros and a user reported that numbered lists with more than 100 entries doe not render properly as Confluence cuts off the 1 from 100. After further analysis I found at that Confluence applies the class ak-renderer-extension-overflow-container to static content macros which cuts off the overflow.
Now I asked myself why is there an overflow at all. After creating a numbered lists with more than 100 entries I saw way. Latest at 100 the numbering flows out of the box => the number starts left from the actual page border as you can see in this image:
I assume this is not intentional?