Did this for a little practice and to spend a few distracted hours! Got the idea from a screenshot at frontend mentor and did it from there. Might be different or the same as the original challenge, I don't know since I only looked at the first screenshot.
https://ddandev.github.io/rock-paper-scissors/
Just pick your play and click or tap it. Your computer or phone will make a pick too. Then you will see who wins and can play again. Scores are kept at the top of the page and can be reset by a button at the bottom right.
The whole thing scales to any screen size.
1- Add button to display to the user the random generator tester that already exists in the js code. (Remove the tinfoil hat when a score of 5 x 20 is upsetting...... but it happens)
2- Animate the transitions between each game state!
3- Make it possible to play with two human players, each making their choices with a configurable set of keyboard buttons. A choice not made within a very short delay after the first one doesn't trigger the play result so the hoomans must count down and choose at the same time.