We’ve already had a glimpse at Server-Sent Events (also known as EventSource, and I’ll switch between the two to keep you on your toes) in my Methods of Communication article from last year. In this article, I want to delve in to more detail about the SSE API, demonstrate its features, and even show you how to polyfill browsers that lack EventSource support.

For some time now, we’ve been using various technologies to edit and store text within a web browser. Now with the contenteditable attribute, things have got a whole lot easier. In this article, I’ll tell you what this attribute is for, how it works, and how we can take things further.

Across the web, you’ll see a range of sites that feature calculators for working out things like loan repayments, mortgage rates, tax, insurance, and more. Until now, we’ve had no way of semantically marking up the result of those calculations. Enter: the <output> element! In this article, we’ll show you <output> and some related JavaScript tricks. Let’s get cracking.

We’ve been able to play video in the browser without a plugin for a couple of years now, and whilst there are still some codec annoyances, things appear to have settled down on the video front. The next step is adding resources to the video to make it more accessible and provide more options to the viewer.

Until recently, we developers couldn’t to do much with the state and history of the browser. We could check the number of items in the history and push users forwards and backwards, but this provides little benefit to the user. With the rise of more dynamic web pages, we need more control. Thankfully, HTML5 gives [...]

The <u> element was deprecated in HTML 4 and non-conforming in HTML5, but a couple of use cases have seen it return from the dead. Are the use cases enough to persuade you that it’s a phoenix not a zombie?

We were surprised and saddened when Mark Pilgrim decided to retire from the internet and take his writing, including “Dive into HTML5” with him. However the interwebs have your back. We’re adding a mirror of the book here to add to the growing list, and plan to help keep it updated. So long Mark, and thanks for all the <>!

We all learn in different ways. Some of us are readers or writers, some are kinesthetic learners, some prefer video or audio. If you fall into either of the latter two categories, Tantek Çelik’s DVD HTML5 Now might just be for you.

Your friendly neighbourhood doctors are often contacted by journalists and analysts who have questions about HTML5, usually from a consumer of business perspective. This is great, as we spend many more hours every week mutely shaking our heads while reading the ill-informed columns from journalists or analysts who haven’t contacted us.

The scoped attribute for the style element allows you to include styles mid-document that targets a specific element and its children. Depending upon how you look at this, it’ll either be a godsend or a curse. Once you’ve reached the end of this article, I hope you can form your own opinion.