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Links to things we’re checking into.

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Is the button focusable?

Is the button focusable?

Let’s play a game. I’ll hide a button using different techniques in HTML and CSS, and you have to guess whether it’s still focusable.

Custom Property Fallbacks

Custom Property Fallbacks

Look at this CSS and take a guess what color our text will be. No tricks, this is the only relevant code:

Why Do We Have a Cache-Control Request Header?

Why Do We Have a Cache-Control Request Header?

As developers, we’re most used to Cache-Control as the preferred way of instructing caches (usually browsers) on how they should store responses (if at all), and what to do once their cache lifetime is up.

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