[jostylr]

Their guides are indispensable for my occasional dabbling.

Just saved flexbox and grid guides using the SingleFile extension, something I discovered a couple of weeks ago here on HN. HN warns and provides solutions.

https://addons.mozilla.org/en-US/firefox/addon/single-file/

[mrpotato]

Didn't know (but should have) that they had a grid guide! Thanks

flexbox https://css-tricks.com/snippets/css/a-guide-to-flexbox/

grid https://css-tricks.com/snippets/css/complete-guide-grid/