Consider: Don't require delimiting semicolons

[start]

Thank you for making this game! Incredibly well-executed.

I'm aware of issues #15 (Indication of invalid style) and #18 (Require semicolons).

This might be a bit contentious, but I feel requiring users to delimit lines with semicolons only detracts from the purpose of the game—to have fun learning flexbox.

[memark]

I agree! Even as a professional developer, I stumbled upon this many times.