Unable to change body properties through style element in sololearn.

Question

For some reason, I'm not able to body properties through <style> sheet in sololearn. So I've used inline styling in body instead which resolved the issue. But it was working in chrome. So any ideas on why?
https://code.sololearn.com/WA7a20a20A60/?ref=app

Answer 1

𝕊𝕠𝕙𝕒𝕚𝕓 𝔸𝕙𝕞𝕒𝕕

There should not be style tag in CSS section.

Remove this <style> and this </style>