Useful links: CSS selectors, OS X shortcuts, Postel’s law, Bob’s Birthday

Understanding CSS Selectors at Script Junkie. Great explanation of attribute selectors, including how to style with attribute selectors when using ARIA roles and forms. The article also explains how to use more than one attribute selector to create styles.

Want to look like a real computer whiz on your Mac? Study A selection of Mac OS X keyboard shortcuts at 456 Berea Street for some lesser known shortcuts that will speed up your day.

Adactio was talking about Going Postel today. He said,

As long as we use progressive enhancement, the front-end stack of HTML, CSS, and JavaScript is remarkably resilient. Remove JavaScript and some behavioural enhancements will no longer function, but everything will still be addressable and accessible. Remove CSS and your lovely visual design will evaporate, but your content will still be addressable and accessible.

I had to go look up Postel’s Law to see what he was referring to. Just in case you’ve never heard of it either, here’s how Wikipedia describes it:

In computing, the robustness principle is a general design guideline for software:

Be conservative in what you send; be liberal in what you accept.

The principle is also known as Postel’s Law, after Internet pioneer Jon Postel, who wrote in an early specification of the Transmission Control Protocol that:

TCP implementations should follow a general principle of robustness: be conservative in what you do, be liberal in what you accept from others.

Today’s is Bob Marley’s birthday. And I cannot resist an occasional foray into the off topic land of iconic music. The wonderful organization Playing for Change has given us this in celebration of the day.

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