Hi emilyrath !
I see that you've given the .buttonizer class a position: absolute, this means that the button won't stay fixed and move with the webpage. Also the button is set to percentage.
The position: absolute behavious differently than the default position: fixed we use at Buttonizer. The fixed position uses always the screen height to position while the absolute position may use the full height of the webpage as well. In your case it looks like your buton moves slightly a percentage if the height changes.
This blog article makes the page longer than the average page on your website so the button moves. That's probably why that's happening. I suggest using position fixed instead of absolute and it will fix the issue 🙂
