Here's my example:
http://artquest.ru/temp/avon/container.html (sorry for non-Codepen, learning it yet)
Notice the 1px jump at the end of the text animations (Chrome, FF), also note the antialiasing change (and similar jump) of all the text after "big V" animation starts (most noticeable in FF). Additionally there is a barely visible pulsing of the middle petal lower border.
I think it's all antialiasing problems. Is there any method to avoid it?
If pure css animation is used there's no such problems.