We’re back again to answer some more of your questions. This time we’ve included a bonus answer so you’ve got six to go at, rather than the usual 5. In this post cover a XMLHttpRequest query, how to define sections, understanding outlines, what markup to use for a social bar, using HTML5 with a legacy site and hidden headings for accessibility.

Between curating sites for the HTML5 gallery and answering readers’ questions here at HTML5 Doctor, I see a host of HTML5 sites and their underlying markup. In this post, I’ll show you some of the mistakes and poor markup practices I often see and explain how to avoid them.

The clinic is packed this week with your HTML5 ailments! Today, we’ll discuss an HTML5 syntax dilemma, using sections within sections, link semantics, describing the contents of a figure, and marking up web app toolbars.

The clinic is getting busy with more HTML5 ailments! This week, we’ll cover the separation of formatting and content, custom elements, using aside for social links, sections with no visible titles, and canvas in the DOM.

The clinic is getting busy with more HTML5 ailments. This week, we’ll cover questions about aside, blogging platforms, stylesheet links, id attribute validation and a mammoth semantic journey.

The clinic is getting busy with more HTML5 ailments. This week, we’ll cover using sections within a footer, <canvas> vs. Flash security, why HTML5 elements are treated as inline, using offline with storage, and marking up block quotes.

We’ve discussed a lot of new elements here at HTML5Doctor, but the article element has somehow escaped the microscope… until now! article is one of the new sectioning elements. It is often confused with section and div but don’t worry we’ll explain the difference between them.

Here we are again with another round up of patient questions about HTML5. In this article, we’ll be covering a host of topics including AJAX, the eternal question of div or section, how to markup multiple blocks of content in a sidebar and using header with hgroup.

We’re back with our first round up of your questions for 2010. In this article we’ll be covering a range of topics including sections and sectioning, the img element, scaling video and a proposal for a field element.

We doctors are a bunch of chums using HTML5 and writing about how we do it. And we realise that we’ve been using the section element incorrectly all this time. Sorry.