Page 79 - GIGW2

Guidelines

for Indian Government Apps & Websites

or is not presented to users, then it is implemented in a way that it can be
ignored by assistive technology (by using blank alt attribute). (Ref. WCAG 1.1.1)

• The HEIGHT and WIDTH dimension attributes force the browser to
allocate space for images and download the text first. The height and width
specifications should be the same as the actual height and width of the image.
This speeds up the time to download the web page and display the content.

6.7
Audio / Video / Animation

The use of audio/video clips in a website can enrich the content and render the
communication more effective for the visitor; however, the following guidelines should
be followed while including audio/video clips on the website.

6.7.1 Download Details for Video and Audio Clips

a. Download information MUST be provided to help users determine whether
they wish to access the video or audio clip. This includes the download and
usage instructions, file size, and file format.

b. If a specific software programme is required to access the multimedia file, a
link to enable the user to download it MUST be provided.

6.7.2 Text Equivalents for Video and Audio Clips

In order to ensure that content of video and audio clips is accessible to all,
including those with impaired vision, hearing impaired or those accessing the
information on slow connections:

a. Government websites MUST provide equivalent information of audio only/
video only clips (e.g. a text description of the audio/video). In case of video-
only clips audio description of the video may also be provided in place of text.
Ref. WCAG 1.2.1

b. When audio (live or pre recorded) is synchronised with other media for
presenting information the audio information MUST be presented as
captions for the benefit of hearing impaired or those who do not have access to
audio. Captions must not only include dialogue, but identify who is speaking
and include non-speech information conveyed through sound, including
meaningful sound effects. In case of video presented in synchronised media

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