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  • Understanding 3D Transforms

    By Tiffany Brown · Wednesday, June 12, 2013 0

    In this article we'll dig in to 3D transforms in detail, looking at the fundamental differences between 3D and 2D transforms, the 3D transforms available, and some demos that show how these work. Read more…

  • Better performance with requestAnimationFrame

    By Luz Caballero · Wednesday, June 12, 2013 0

    This article discusses how you can (and should) improve the performance of your animations, using the requestAnimationFrame API instead of the old setInterval/setTimeout methods, and how requestAnimationFrame is used. Read more…

  • Major changes in Opera's extensions infrastructure

    By Andreas Bovens · Tuesday, May 28, 2013 0

    With Opera switching from Presto to Chromium and a complete UI remake, our extensions infrastructure has also gotten a major overhaul: from Opera 15 onward, Opera 11 & 12’s extension format is no longer supported, and instead, we’ve switched to Chromium’s extension model. Read more…

  • Remotely debugging Opera for Android

    By Bruce Lawson · Tuesday, May 21, 2013 0

    Now that Opera for Android is out, you'll sometimes need to debug it, as there are differences in Standards support between Opera and Chrome for Android and Chrome on Android 4+. Because current and future Opera for Android releases are based on Chromium, we can't use the current Opera desktop releases to connect to them (wait for Chromium-based Opera desktop releases for that). So here's how to connect Opera for Android to another Chromium-based desktop browser for remote debugging. Read more…

  • Animating flexboxes: the lowdown

    By Chris Mills · Wednesday, April 17, 2013 0

    In this article, Chris Mills explores what can be achieved by using animations and transitions — along with a little JavaScript — in conjunction with Flexbox. Read more…

  • Advanced cross-browser flexbox

    By Chris Mills · Wednesday, April 10, 2013 0

    The CSS Flexible box module level 3 brings with it a lot of power and some very exciting possibilities for web development, allowing us to put together complex site layouts easily and rapidly, and dispensing with some of the illogical hacks and kludges that we've traditionally used. In this article Chris Mills goes beyond the basics, showing some more interesting uses of flexbox, and how Modernizr can be employed to serve different styles to browsers with differing levels of flexbox support to provide the best level of cross browser support available. Read more…

  • Adding Geolocation metadata, with microformats, datasets, microdata and RDFa Lite

    By Karl Dubost · Wednesday, January 16, 2013 48

    In September 2011, I needed to mark up location data in an HTML document and it became more complicated than I initially thought it would be. I started to think about this topic again recently and explored some possibilities. In this article I will share my findings, looking at how I used microformats, datasets, microdata and RDFa Lite to mark up this data, and discussing what the best option might be. Read more…

  • Opera's year in Dev Rel 2012

    By Chris Mills · Wednesday, December 19, 2012 62

    Opera's dev rel team have done a lot this year. To tie things up for 2012, we would like to present our highlights and best publications of 2012; some golden moments for you to read when the vacation gets boring! Read more…

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