A handy list of documented examples of responsive images markup, to make you familiar with its different combined use cases.
This article describes how you can install Opera Mini on your computer for debugging or testing purposes.
will-change is a new property that allows you to let a browser know ahead of time that an element may change, so that it can make any preparatory optimisations. Sara Soueidan shows you how to put an end to cargo-cult hacks, and speed up your animations.
CSS Blend Modes provide a way to specify how one layer will interact or “blend” with the one underneath. Until now, this was the domain of photo editing applications, but now they are available on the web using CSS itself!
IndexedDB offers a powerful way to store and retrieve data in the browser. As with server-side databases, IndexedDB allows us to generate keys, search data, or sort it by a particular field. In this article, we’ll dig into the IndexedDB API by building a to-do list manager. But first, let’s look at some of the concepts around databases and IndexedDB.
The W3C device orientation API allows us to determine the orientation of a device in physical space. In this advanced tutorial we cover some of the pitfalls and propose some new ways of working with this data for developing practical device-orientation-aware web applications on mobile devices.
We sat down with Zach from Abine, and asked him all about the DoNotTrackMe extension, which was recently submitted to the Opera extensions catalog.
We sat down with Ben from Adblock Plus, and asked him all about the product, how it started, how it’s different, how the company behind it makes money, whether ad blocking is hurting the internet or not, and more.
Ready to enter the world of parallax scrolling websites? Yes, scrolling sites are absolutely everywhere. Sadly, sometimes they do little more than distract and disorient a user in an attempt to show off, but when done correctly, they can make the web a more exceptional place. At its best, parallax scrolling can help users explore content in an immersive and engaging way.
Due to the major architectural changes we’ve been going through recently, the first versions of our Chromium/Blink based Opera browser (versions 15, 16 and 17) do not support themes. However, from Opera 18 onward, themes are supported again! This article explains you how to create themes for Opera 18+.
Media Capture is one of the most interesting features in web applications, especially for mobile devices. Surprisingly capturing media on the spot is quite a new thing for browsers in general, until recently always being delegated to browser plugins such as Flash or Silverlight. In this article we will explore how to use the Media Capture APIs, their compatibility across mobile browsers and the current state of the W3C specifications that define them.
We sat down with Ulla from Web of Trust, and asked her what makes WOT special, how the service makes money, which extension development tools the WOT developers use, and much more.