WCAG 2.0 Success Criteria for CSS techniques

This document shows WCAG guidelines for the CSS techniques.

CSS Technique	Guideline	Notes
Controlling fonts, colors, text-size
1.1: Specifying fallback fonts	Any text that is presented over a background is electronically available so that it could be re-presented in a form that allows the text to be distinguished from the background. (Level 1)
1.2: Specifying font characteristics	Emphasis can be derived programmatically. (Level 1) Any information presented through color is also available without color (for example, through context or markup or coding that does not depend on color). (Level 1) Any text that is presented over a background is electronically available so that it could be re-presented in a form that allows the text to be distinguished from the background. (Level 1)
1.3: HTML elements to control fonts	Except where the site has documented that a specification was violated for backward compatibility or compatibility with assistive technology, the technology has: (Level 1)
1.4: Specifying colors with numbers not names (deprecated?)	(Level )
1.5: Specifying colors	Emphasis can be derived programmatically. (Level 1) (Level )
1.6: Create foreground and background contrast	Text that is presented over a background has a contrast greater than ____ between the text and the background as measured by ___ or the resource provides a mechanism to allow the text to meet this criterion. (Level 2)
1.7: Specify background color if specify foreground color	Any text that is presented over a background is electronically available so that it could be re-presented in a form that allows the text to be distinguished from the background. (Level 1)
1.8: Conveying information through multiple means (not just color)	Structures and relationships within the content can be derived programmatically. (Level 1) Any information presented through color is also available without color (for example, through context or markup or coding that does not depend on color). (Level 1)
1.9: Using relative units of measure for properties that need to change	Users who do not have one or more of these technologies can still access and use the resource, though the experience may be degraded. (Level 3)
1.10: Using absolute units of measure for properties that do not need to be flexible	Users who do not have one or more of these technologies can still access and use the resource, though the experience may be degraded. (Level 3)
1.11: Creating stylized text with CSS rather than using raster images	Any information presented through color is also available without color (for example, through context or markup or coding that does not depend on color). (Level 1) Emphasis can be derived programmatically. (Level 1) Structures and relationships within the content can be derived programmatically. (Level 1) Any text that is presented over a background is electronically available so that it could be re-presented in a form that allows the text to be distinguished from the background. (Level 1)
1.12: Formatting and positioning of text	Any information presented through color is also available without color (for example, through context or markup or coding that does not depend on color). (Level 1) Emphasis can be derived programmatically. (Level 1) Structures and relationships within the content can be derived programmatically. (Level 1) Any text that is presented over a background is electronically available so that it could be re-presented in a form that allows the text to be distinguished from the background. (Level 1) Components that are repeated on multiple "pages" within a resource or a section of a resource occur in the same sequence each time they are repeated, for at least one presentation format. (Level 2) Users who do not have one or more of these technologies can still access and use the resource, though the experience may be degraded. (Level 3)
1.13: Text style effects: case, shadow, decoration	Emphasis can be derived programmatically. (Level 1) The user is allowed to turn off content that blinks for more than 3 seconds. (Level 2)
1.14: Creating rules and borders	Different structural elements look or sound different from each other and from body text. (Level 2)
Generated content
2.1: Text equivalents for content generated by style sheets	Non-text content that is designed to create a specific sensory experience (such as music without words or visual art) has a text label or a text description explicitly associated with it. (Level 1) Text-equivalents are explicitly associated with non-text content, except when the non-text content is intended to create a specific sensory experience (for example, music without words and visual art). (Level 1)
2.2: Generated content in the DOM	(Level )
2.3: Providing contextual clues in lists	Different structural elements look or sound different from each other and from body text. (Level 2)
Miscellaneous assortment of techniques
3.1: Creating layout, positioning, layering, and alignment	Structures and relationships within the content can be derived programmatically. (Level 1) Components that are repeated on multiple "pages" within a resource or a section of a resource occur in the same sequence each time they are repeated, for at least one presentation format. (Level 2) Users who do not have one or more of these technologies can still access and use the resource, though the experience may be degraded. (Level 3)
3.2: Null alt-text
3.3: Providing good structural markup for graceful degradation
3.4: Scripting and style sheets
3.5: Using ACSS to create auditory presentation	(Level )
3.6: Access to alternative representations of content
3.7: Media types