CSS

Auditing

• 🧰 CSS Auditing Tools • Article by Smashing Magazine listing a variety of tools for assessing the impact of your CSS

Grid

• 🎓 Learn CSS Grid for free • Free course by Scrimba that teaches CSS Grid through 14 interactive screencasts

Layout

• 📺 10 modern layouts in 1 line of CSS • 22 minute video by Una Kravets
• 📖 What the heck, z-index?? • Article by Josh Comeau explaining how stacking contexts actually work

Utility-First CSS

• ✍️ CSS Utility Classes and "Separation of Concerns" • Article by Adam Wathan

Tailwind.css

• 📺 Building a Twitter Clone with Tailwind CSS and Next.js • 35 minute video by Sam Selikoff marking up and styling a fake Twitter feed
• 📺 Tailwind CSS Tips, Tricks & Best Practices • 91 minute video by Sam Selikoff
• 📺 Tailwind CSS Best Practice Patterns • 31 minute video by Adam Wathan