Archive for the ‘Elements’ Category

HTML5 forms introduction and new attributes

No doubt you interact with at least one form on the Web every day. Whether you’re searching for content or logging in to your e-mail account or Facebook page, using online forms is one of the most common tasks performed on the Web. As designers and developers, creating forms has a certain monotony about it, particularly writing validation scripts for them. HTML5 introduces a number of new attributes, input types, and other elements for your markup toolkit. In this article we’ll be focussing on the new attributes with a future article looking at the new input types.

The progress element

When building web sites and web applications, we often need to provide essential feedback to a user informing them of the progress of their request or task, be it uploading a file, playing a video, or importing data. HTML5 makes life easier for us by defining an element whose sole purpose is just that: the […]

HTML5 adaptive images: end of round one

After The Great Vendor Prefix Hullaballoo of April 2012 comes The Great Responsive Images Brouhaha of May 2012. We look at the main competing formats for adding adaptive images to HTML – the <picture> element, and the <img srcset=""> attribute.

HTML5 Audio — The State of Play

Guest doctor Mark Boas returns with a follow up to his 2009 article Native Audio in the Browser, which covers the basics of HTML5 audio. Read the original if you want to get a feel for the <audio> element and associated API. If not, get comfortable and dive deep to learn about the current state of play for HTML5 audio.

Let’s Talk about Semantics

It’s time we had “the talk”. I could get you a book or recommend some sites from Dr Mike’s special bookmarks folder, but the best way to make sure you get the right idea is to do it myself. I’m talking about HTML semantics. Understanding the thinking behind the naming of elements will help your markup shine.

The <code>ol</code> Element and Related Attributes: <code>type</code>, <code>start</code>, <code>value</code>, and <code>reversed</code>

The <ol> element has a new attribute reversed in HTML5. In addition, a couple of related attributes purged in HTML 4 have made a return, namely start and type for <ol>, and value for <li>. Making things more interesting, the returning attributes were removed from HTML 4 for being presentational. So why are they back? Let’s investigate…

The output element

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.

Video Subtitling and WebVTT

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.

Goodbye time, datetime, and pubdate. Hello data and value.

While HTML5 is stable and being implemented we’re still not past losing (or gaining) an element, as demonstrated by the removal of <time> and the addition of <data>. Rather than jumping into the ensuing brouhaha, we’ve spent some time figuring out what this really means. In short? Well… it’s complicated.