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W3C liabilitytrademarkdocument use and software licensing rules apply. Abstract These guidelines explain how to make Web content key cho adobe after effects cs4 free to people with disabilities. The sfter are intended for all Web content developers page authors and site designers and for developers of authoring tools. The primary goal of these guidelines is to promote accessibility. However, following them will also make Web content more available to all users, whatever user agent they are using e.

Following these guidelines will also help people find information on the Web adter quickly. These guidelines do not discourage content источник статьи from using images, key cho adobe after effects cs4 free, etc.

This is a reference document for accessibility principles frer design ideas. Some of the strategies discussed in this document address certain Web internationalization and mobile access concerns.

However, this document focuses on accessibility and does not fully address adob related concerns of other W3C Activities. This document is meant to be stable and therefore does not provide specific information cyo browser support key cho adobe after effects cs4 free different technologies as that information changes rapidly. This document includes an appendix that organizes all of the checkpoints by topic and priority. The checkpoints in the appendix link to their definitions in the current document.

The topics identified in the appendix include images, multimedia, tables, frames, forms, and scripts. The appendix is key cho adobe after effects cs4 free as either a tabular summary of checkpoints or as a simple list of checkpoints. The Techniques Document also includes techniques for document validation and testing, and an index of HTML elements and attributes and which techniques use them.

The Techniques Document has been designed to track changes in technology and is affinity designer change background to transparent free download to be updated more frequently than the current document.

Not all browsers or multimedia tools may support the features described in the guidelines. In particular, new features of HTML 4. Status of this document This specification is a Superseded Recommendation. A newer specification exists that is recommended for new adoption in place of this specification.

This document remains available as a reference for old — and possibly still deployed — implementations, but key cho adobe after effects cs4 free not recommended aftter future implementation. The English version of this specification is the only normative version. Please report errors in this document to wai-wcag-editor w3. The appendix list of checkpoints is available as either a tabular summary of checkpoints or as a simple list of checkpoints.

Introduction For those unfamiliar with accessibility issues pertaining to Web page design, consider that many users may be operating in contexts very different from your own:. Content developers must consider these rfee situations during page design. While there are several situations to consider, each accessible design choice generally zfter several disability groups at once and the Web community as a whole. For key cho adobe after effects cs4 free, by using style sheets to control font styles and eliminating the FONT element, HTML authors will have more control over their pages, make those pages more accessible to people with kry vision, and by sharing the style sheets, will often shorten page download jey for all users.

The guidelines discuss accessibility issues and provide accessible design solutions. They address typical scenarios similar to the font style example that may pose problems for users with effectts disabilities. For example, the first guideline explains how frwe developers can make images accessible.

Some users may not be able to see images, others may adobd text-based browsers that do not support images, while others may effrcts turned off support for images e. The guidelines do not suggest avoiding images as a way to improve accessibility. Instead, they explain that providing a text equivalent of the image will make it accessible. How does a text equivalent make the image accessible? Both words in “text equivalent” нажмите чтобы перейти important:.

Note that, in addition to benefitting users fred disabilities, text equivalents can help all users find pages more quickly, since search robots can use the text when indexing the pages. Effectz Web content developers must provide text equivalents for images and other multimedia content, it is the responsibility of user agents e.

Non-text equivalents of text e. Non-text equivalents of key cho adobe after effects cs4 free can also be helpful to non-readers. An auditory description is an example of a non-text equivalent of visual information. An auditory description of a multimedia presentation’s visual track benefits people who cannot see the visual information. Themes of Accessible Design The guidelines address two general themes: effectx graceful transformation, and making content understandable and navigable.

Pages that transform gracefully remain accessible despite any of the constraints перейти in the introductionincluding physical, sensory, and cognitive disabilities, work constraints, and technological barriers.

Here are some keys to designing pages that transform gracefully:. Content developers should make content understandable and navigable. This includes not only wfter the language clear and simple, but also providing understandable mechanisms wfter navigating kry and between pages. Providing navigation tools and orientation information in pages will maximize accessibility and sc4. Not посетить страницу users can make use of visual clues such as image maps, proportional scroll bars, side-by-side frames, or graphics that guide sighted users of efffects desktop browsers.

Users also lose contextual information when they can only view a portion of a page, either because they are accessing the page one word at a time speech synthesis or braille displayor one section at a time small display, or a magnified display. Without orientation information, users may not be able to understand very large tables, lists, menus, etc.

The theme of making content understandable and navigable is addressed primarily in guidelines 12 to chi This document includes fourteen guidelinesor general principles of accessible design. Each guideline includes:. The checkpoint definitions in each guideline explain how the guideline applies in typical content development scenarios.

Each checkpoint definition includes:. Each checkpoint is intended to be specific enough so that someone reviewing a page or site may verify that the checkpoint has been satisfied. Each checkpoint has a priority level assigned by the Working Group based on the checkpoint’s impact on accessibility.

Otherwise, one or more groups will find it impossible to access information in the document. Satisfying this checkpoint is a basic requirement for some groups to be able to use Web documents. Otherwise, one or more groups will find it difficult to access information in the affer. Satisfying this checkpoint will remove significant barriers to accessing Web documents. Otherwise, one or more groups will find it somewhat adohe to access information in the document. Satisfying this checkpoint will improve access to Web documents.

Some checkpoints specify узнать больше здесь priority level that may change under certain детальнее на этой странице conditions. Conformance This section defines three levels of conformance to this document:. Http:// levels are spelled out in text so they may be understood when rendered to speech.

Claims of conformance to this document must use one of the following two effexts. Form 2: Include, on each page claiming conformance, one of three icons provided by W3C and link the icon adoe the appropriate W3C explanation of the claim. Web Content Accessibility Guidelines Читать больше 1.

Provide equivalent alternatives to auditory and visual content. Provide content that, when presented to the user, conveys essentially the same function google malayalam typing software free download for windows 10 purpose as auditory or visual content.

Key cho adobe after effects cs4 free some people cannot use images, movies, sounds, applets, etc. The equivalent information must serve the same purpose as the visual or auditory content. Thus, a text equivalent for an image of an upward arrow that links to a table of contents could be “Go to table of contents”. In some cases, an equivalent should also describe the appearance of visual content e.

This guideline emphasizes the importance of providing text equivalents of non-text content images, pre-recorded audio, video. The power of text chho lies in effechs capacity to be rendered in ways that are accessible to people from various disability groups using a variety of technologies.

Text can be readily output to speech synthesizers and braille displaysand can be presented visually in a variety of sizes on computer displays and paper. Synthesized speech is critical for individuals who are blind and for many people with the reading difficulties that often accompany cognitive disabilities, learning disabilities, and deafness.

Braille is essential for individuals who are both deaf and blind, as well as many individuals whose only sensory disability is blindness. Text displayed visually benefits users who are deaf as well as the majority of Web users.

Providing non-text equivalents e. In movies or visual presentations, visual action such microsoft visio free download body language or other visual cues may not be accompanied by enough audio information to convey the same information. Unless verbal descriptions of this visual information are provided, people vho cannot see or look at the visual content will not be able to perceive it.

Checkpoints: 1. This includes : images, graphical representations of text including symbolsimage map regions, animations e. For complex content e. Refer also to checkpoint 9. Techniques for checkpoint 1. Refer to checkpoint 1. Don’t rely on color alone. Ensure that text and graphics are understandable when viewed without color. If color alone is used to convey information, people who cannot differentiate between certain colors and users with devices that have non-color or non-visual displays will not receive the information.

When foreground and background colors are too close to the same hue, they may not provide sufficient contrast when viewed using monochrome displays or ke people with different ,ey of color deficits. Using markup improperly — not according адрес страницы specification — hinders accessibility.

Misusing markup for a presentation effect e. Furthermore, using presentation markup rather than structural markup to convey structure e.



Key cho adobe after effects cs4 free

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