CSS nesting is great, but should be used with caution. As a rule, if a selector will work without being nested, don’t nest it. However, there are certain situations where nesting can make things easier to understand.

What I wasn't expecting was that changing the image for light and dark themes is also art direction, and therefore a good use for the picture element.

they are rather “out of range” for the color model, but there is built-in browser magic in place that pulls the values back into range. It picks the best I know what you meant color match.

Revisiting a CSS trick I wrote about in 2022 and re-doing it using a new CSS feature.

An experimental CSS rule with form-sizing property is coming that will let you increase the height of the textarea automatically based on the amount of text the user enters.