People have been asking me lots of questions about WebVTT (Web Video Text Tracks) recently. Questions about its technical nature such as: are the features included in WebVTT sufficient for broadcast captions including positioning and colors? Questions about its standardisation level: when is the spec officially finished and when will it move from the WHATWG to the W3C? Questions about implementation: are any browsers supporting it yet and how can I make use of it now?
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.
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.
Tracking the Companies that Track You Online is a podcast from NPR’s Fresh Air. It’s an interview with Julia Angwin of The Wall Street Journal that looks at how tracking companies, data brokers and advertising networks work.