Editing Web accessibility (section)

==Essential components of web accessibility==
The accessibility of websites relies on the cooperation of several components:<ref name="waicomponents">{{cite web |url=http://www.w3.org/WAI/intro/components.php |title=Essential Components of Web Accessibility |date=August 2005 |author=Shawn Lawton Henry |publisher=World Wide Web Consortium |access-date=31 July 2019 |archive-date=20 April 2018 |archive-url=https://web.archive.org/web/20180420111729/http://www.w3.org/WAI/intro/components.php |url-status=live }}</ref>
# content – the information in a web page or web application, including natural information (such as text, images, and sounds) and code or markup that defines structure, presentation, etc.  
# web browsers, media players, and other "user agents"
# assistive technology, in some cases – screen readers, alternative keyboards, switches, scanning software, etc.
# users' knowledge, experiences, and in some cases, adaptive strategies using the web
# developers – designers, coders, authors, etc., including developers with disabilities and users who contribute content
# authoring tools – software that creates websites
# evaluation tools – web accessibility evaluation tools, HTML validators, CSS validators, etc.
{{blockquote|Web '''developers''' usually use '''authoring tools''' and evaluation tools to create web '''content'''. <br />'''People''' ("'''users'''") use web '''browsers''', '''media players''', '''assistive technologies''' or other "'''user agents'''" to get and interact with the '''content'''.<ref name="waicomponents"/>}}