Steps to reproduce:
I visited the notebook here: https://github.com/huggingface/notebooks/blob/master/transformers_doc/preprocessing.ipynb
There is an awful rendering bug along the edges (shown in the attached video).
It occurs in compatibility mode and in Safari, but it's really atrocious.
No rendering issue.
Orion and macOS:
Version 0.99.109.1-beta (WebKit 613.1.12)
macOS Catalina 10.15.7 (19H2)