They're not free, but Jen Kramer's CSS courses on Frontend Masters are very good, and are pretty recent. https://frontendmasters.com/teachers/jen-kramer/ https

They're not free, but Jen Kramer's CSS courses on Frontend Masters are very good, and are pretty recent. https://frontendmasters.com/teachers/jen-kramer/ https://frontendmasters.com/teachers/jen-kramer/ I attempted CSS back when you had to float anything/everything for positioning and found it extremely confusing. I recently picked it back up, and flexbox and grid make it sooo much easier. I feel like I'm finally getting it.