Can someone help?

Question

Im trying to make my code chrome friendly (so people with chrome can play) but when i go to the code in my pc it only shows “[object][object]”. Idk why it does that because for a second i can see my game, i mean things arent in the right place but i expected that. Heres my code:
https://code.sololearn.com/WC3LyEOIdmPc/?ref=app

Update: i used what gordon said that website but i still get: “[object Object]”

Answer 1

You overdo the vendor prefix

Backward compatibility is not an issue for most CSS properties now.

use caniuse or mdn to check the coverage.

For example, -webkit-right is completely unnecessary.
https://caniuse.com/#search=right