Accessibility
Replacing <noscript> with accessible, unobtrusive DOM/JavaScript
by Frank M. Palinkas
Accessible Context-sensitive Help with Unobtrusive DOM Scripting
by Frank M. Palinkas
Creating Accessible Data Tables
by Frank M. Palinkas
Building Accessible Static Navigation with CSS
by Frank M. Palinkas
CSS
Fonts for web design: a primer
by CraigGrannell
CSS text shadows and background sizing
by Christopher Schmitt
Progressive Enhancement with CSS 3: A better experience for modern browsers
by Peter Gasston
Styling Forms with Attribute Selectors - Part 2: adding in some CSS3
by Christopher Schmitt
Improving the usability of within-page links
by Bruce Lawson
Safe media queries
by Opera Software
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HTML
Location-based publishing and services
by Premasagar Rose
XFN encoding, extraction, and visualizations
by Brian Suda
The first working draft of HTML 5 is here!
by Anne van Kesteren
Microformat Encoding and Visualization
by Brian Suda
Starting with a sound structure – predictable HTML layouts using the YUI
by Christian Heilmann
Semantic HTML and Search Engine Optimization
by Joost de Valk
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JavaScript
Rich HTML editing in the browser: part 1
by Olav Junker Kjær
The Opera Animation library
by Opera Software
A browser sniffing warning: The trouble with Acid3 and TinyMCE
by Hallvord R. M. Steen
Stop using Ajax!
by brothercake
Javascript badges powered by JSONP and microformats
by Gareth Rushgrove
The seven rules of unobtrusive JavaScript
by Christian Heilmann
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Mobile
Opera Mobile 9.5 - the developer angle
by Chris Mills
Server-side capability detection for mobile devices part 2
by Brian Suda
Server-side capability detection for mobile devices part 1
by Brian Suda
Web design with Opera Mobile in mind
by Chris Mills
Opera Mini 4 is here!
by Chris Mills
Designing and Developing mobile web sites in the real world, part 2
by Brian Suda
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Opera
The freelancing business part 2: budgeting your projects
by R Blank
Remote debugging with Opera Dragonfly
by David Storey
1: Introduction to The Web Standards Curriculum/Table of Contents
by Chris Mills
Supplementary: Getting your content online
by CraigGrannell
Supplementary: More about the document <head>
by Christian Heilmann
21: Lesser-known semantic elements
by mnfrancis
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SVG
Applying color tints to web pages with SVG filters and JavaScript
by Ruud Steltenpool
How to do photoshop-like effects in SVG
by Erik Dahlström
SVG Evolution 3: Applying Polish
by Jeff Schiller
Debugging SVG with Opera
by Erik Dahlström
Drawing Hilbert curves with SVG
by DesertDawg
Using animateMotion in SVG
by DesertDawg
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Voice
How to make a Voice controlled SVG game
by Mihai Sucan
XHTML+Voice By Example
by Jonny Axelsson
Getting to know Voice
by Jonny Axelsson
XHTML+Voice in Action
by Jonny Axelsson
XHTML+Voice in Style
by Jonny Axelsson
How to Add Voice Interactivity to Your Site
by Mihai Sucan
Widgets
Widget Emulator
by Opera Software
Opera Widgets Specification 1.0 third edition
by Opera Software
Opera Widgets SDK
by Opera Software
Opera Widgets Preference Store
by Opera Software
Mobile widget development process advice
by Opera Software
Opera Widgets and Ajax: connecting to multiple servers
by Opera Software
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