This is a really clear explanation of how CSS works.
font-display property is landing in browsers, and this is a great introduction to using it:
If you don’t know which option to use, then go with
I’ve seen the exact problem that Rachel describes here—flexbox only applied to direct children, meaning the markup would have to be adjusted.
display: contents looks like a nifty solution.
Zoe uses one little case study to contrast two different CSS techniques: display-table and flexbox. Flexbox definitely comes out on top when it comes to true source-order independence.
Trent offers some excellent advice for dealing with the effects of the iPad’s retina display on your websites. That advice is: don’t panic.
See now, this is why liquid layouts are the way to go.
When I linked to the Toast framework the other day, I mentioned that I was intrigued by its use of inline-block for layout. Here’s a more detailed analysis of how display: inline-block works, along with some caveats.