Allow textarea to vertically auto-grow (CSS only)

[anthony-robin]

By using field-sizing: content on textarea, it allows to auto-grow field vertically, which is far more pleasant than to have to resize manually.

It seems that few browsers support it for now (https://caniuse.com/?search=field-sizing%3A%20content) so let me know if you think it has its seat on picocss or not.

Thank you :)

[Yohn]

This will be awesome when it works cross browser but since it doesn't I don't want to bring it into the project yet.

Here's what I've been using for auto resize textarea heights:
AutoResizer