About Web Standards
Concepts of standards-based web design include the separation of document structure from a web page or application's appearance and behavior; an emphasis on semantically structured content that validates (that is, contains no errors of structural composition) when tested against validation software maintained by the World Wide Web Consortium; and progressive enhancement, a layered approach to web page and application creation that enables all people and devices to access the content and functionality of a page, regardless of personal physical ability (accessibility), connection speed, and browser capability.
Prior to the web standards movement, web page developers used invalid, incorrect HTML syntax such as "table layouts" and "spacer" GIF images to create web pages—an approach often referred to as "tag soup". Such pages looked the same in all browsers of a certain age (such as Microsoft Internet Explorer 4 and Netscape Navigator 4), but were often inaccessible to people with disabilities. Tag soup pages also displayed or operated incorrectly in older browsers, and required multiple code forks such as JavaScript for Netscape Navigator and JScript for Internet Explorer that added to the cost and complexity of development. The extra code required, and the lack of a caching page layout language, made web sites "heavy" in terms of bandwidth, as did the frequent use of images as text. These bandwidth requirements were burdensome to users in developing countries, rural areas, and wherever fast Internet connections were unavailable.
The Web Standards movement pioneered by Glenn Davis, George Olsen, Jeffrey Zeldman, Steven Champeon, Todd Fahrner, Eric Meyer, Tantek Çelik, Dori Smith, Tim Bray, Jeffrey Veen, and other members of the Web Standards Project in the 1990s replaced bandwidth-heavy tag soup with light, semantic markup and progressive enhancement, with the goal of making web content "accessible to all".
The Web Standards movement declared that HTML, CSS, and JavaScript were more than simply interesting technologies. "They are a way of creating Web pages that will facilitate the twin goals of sophisticated and appropriate presentation and widespread accessibility." The group succeeded in persuading Netscape, Microsoft, and other browser makers to support these standards in their browsers. It then set about evangelizing these standards to designers, who were still using tag soup, Adobe Flash, and other proprietary technologies to create web pages.
Read more about this topic: Designing With Web Standards
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