Jeroen will talk about the current state of HTML5 video on both desktop and mobile. The latest developments include the HTML5 element, which promises to make online video accessible and interactive. More info at: https://fronteers.nl/congres/2012/sessions/the-state-of-html5-video-jeroen-wijering

A talk about open source software, money, time, scarcity of resources, economics and side projects. More info at: https://fronteers.nl/congres/2012/sessions/open-source-aint-free-david-desandro

The interactive Google homepage doodles come with all sort of interesting problems and constraints. Join Marcin as he goes through some of the nice solutions, ugly hacks, terrible mistakes, and last-minute miracles accompanying doodles celebrating Pac-Man, Jules Verne, Stanislaw Lem, and recent summer games. More info at: https://fronteers.nl/congres/2012/sessions/the-biggest-devils-in-the-smallest-details-marcin-wichary

According to .net magazine, Lea’s “CSS3 secrets: 10 things you may not know about CSS” was one of the 15 best talks of 2011. Web developers all over Europe loved it. This talk continues on the same path, with even juicier “secrets”. It will teach you how to take advantage of modern standards in unconventional ways to solve common web design challenges and in the process, it will open your mind to truly understanding how these new features work. After all, when you can “get” the unconventional, you will find that the conventional becomes trivial. More info at: https://fronteers.nl/congres/2012/sessions/more-css-secrets-lea-verou

Many web developers will agree that building accessible websites is of great importance. Still, for many of us it's hard to imagine what the web is like if the 'default' ways to interact with it just don't work for you.

In this panel of user experts Bram, Antoine and Bor will show us how they interact with websites and applications and discuss what does or doesn't work for them. More info at: https://fronteers.nl/congres/2012/sessions/accessibility-panel

Use of image editors for creating web design mockups has worked until now, but responsive design is forcing us to find alternatives, as we can't simply create more mockups as we design for more screens. Have no fear, there is at least one method of replacing Photoshop for web design. Let's take a look at one of the most important aspects of this method: the creation of clear, semi-automated, self-updating style guides. More info at: https://fronteers.nl/congres/2012/sessions/style-guides-are-the-new-photoshop-stephen-hay

Web development never gets boring to me. Not just because nowadays, new “HTML5” technologies are emerging like tubes of spaghetti at a pasta factory — but mostly because there’s always something new to learn. Even the oldest, most reliable features of HTML/CSS/JavaScript, “the basics” that we take for granted every day, are full of hidden gems or restrictions. During this talk, we’ll take a look at the more obscure parts of HTML, CSS and JavaScript, and demystify some of them. More info at: https://fronteers.nl/congres/2012/sessions/ten-things-i-didn-t-know-about-html-mathias-bynens

At Guardian Interactive we work to create innovative visualisations to delight and inform our readers. With this talk I want to show you how to design and build not just simple and not-so-simple charts to illustrate data but how to design & architect larger more complex pieces of content that tell stories and illustrate ideas. More info at: https://fronteers.nl/congres/2012/sessions/using-js-to-build-bigger-better-datavis-to-enlighten-and-elate-alex-graul

Viewports are pretty easy on desktop: they're the browser window. Thus, an element with width: 10% will span 10% of the browser window, while width: 100px just means a width of 100px.

On mobile, things are quite different. There are two viewports and three kinds of pixels, and they interact in all kinds of weird ways—ways that depend on the browser. More info at: https://fronteers.nl/congres/2012/sessions/a-pixel-is-not-a-pixel-peter-paul-koch

Whether you're using JavaScript or CoffeeScript, LESS or SASS, building an awesome webapp these days usually requires a plethora of boilerplates, frameworks, tools and a lot of glue to get them to work together. In short, you need a kick-ass toolbelt. From performance tuning to build tools, in this session you'll get a complete overview of the current tooling ecosystem and learn about a new tool for app developers by Google that tries to bring all of the pieces of this ecosystem together for you. It's called Yeoman and we think it's going to make your life simpler. More info at: https://fronteers.nl/congres/2012/sessions/the-new-and-improved-developer-toolbelt-addy-osmani