Dev.Opera

Log in

  • Web
  • Add-ons
  • Mobile
  • TV
  • Labs
  • MAMA: Acknowledgments

    By Brian Wilson · Wednesday, October 15, 2008 3

    Read more…

  • MAMA

    By Brian Wilson · Wednesday, October 15, 2008 13

    Behold the coming of our MAMA! MAMA (Metadata Analysis and Mining Application) is Opera's structural search engine; whereas normal search engines return results about the content of pages, MAMA returns results about site structure, including what doctype the page uses, whether it validates, what HTML elements and CSS properties it uses, what plugins, what scriping constructs, and much more. This is an invaluable tool for many individuals and companies involved in our industry, and Opera wants to share it with everyone. Read on to find out more about it. Read more…

  • Introduction to User JavaScript

    By Zi Bin Cheah · Wednesday, October 8, 2008 1

    This article provides an introduction to User JavaScript, a feature in Opera that allows you to apply custom JavaScript to pages you view whilst surfing the web to enhance functionality or fix annoyances. Read more…

  • 29: Text styling with CSS

    By Ben Henick · Friday, October 3, 2008 3

    Read more…

  • Automatic numbering with CSS Counters

    By David Storey · Wednesday, October 1, 2008 3

    In this article David Storey looks at how to use CSS counters to provide robust sequential numbering for reoccuring HTML elements such as list items or paragraphs. Read more…

  • Opera Web Standards Curriculum glossary

    By Opera Software · Friday, September 26, 2008 7

    This is a glossary of technical terms featured in the web standards curriculum. Read more…

  • Supplementary: Common HTML entities used for typography

    By Ben Henick · Friday, September 26, 2008 6

    Read more…

  • 37: CSS absolute and fixed positioning

    By Tommy Olsson · Friday, September 26, 2008 6

    This article covers the two more complicated of the CSS positioning modes - absolute and fixed. As well as covering absolute and fixed layout techniques, this article also covers z-index in detail. Read more…

  • 1
  • …
  • 60
  • 61
  • 62
  • …
  • 85

Tools

  • Opera Developer builds
  • Web development extensions
  • Opera Mini Simulator
  • Opera TV Emulator
  • Opera Mobile Classic Emulator

Resources

  • Opera Developer News
  • Can I use... tables for Opera
  • Web Education Community Group Wiki
  • Opera questions on StackOverflow
  • GitHub repositories
  • Shiny Demos

Contribute

  • Submit articles

News and announcements

  • Opera for Android 20 beta released
  • Opera Next 20.0.1387.24 for the Cognoscenti
  • A small update to Opera 19
  • Opera Developer update – 20.0.1387.16
  • Opera 19 auto update is back again.

Twitter logo: contained in link to Opera Developer Relations team Twitter stream Opera Developer Network blog logo: contained in link to blog Calendar icon: contained in link to list of events being attended by the Opera Developer Relations team

© 2014 Opera Software ASA.

  • Help/FAQ
  • Terms of service
  • Privacy