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The alt attribute is the HTML attribute used in HTML and XHTML documents to specify alternative text (alt text) that is to be displayed in place of an element that cannot be rendered. The alt attribute is used for short descriptions, with longer descriptions using the longdesc attribute .
On the web, alt text is supplied through the alt attribute. The World Wide Web Consortium (W3C) guidelines state that an image's alt attribute should convey meaning, rather than a literal description of the image itself. [ 2 ]
Alternative text (or alt text) is text associated with an image that serves the same purpose and conveys the same essential information as the image. [1] In situations where the image is not available to the reader, perhaps because they have turned off images in their web browser or are using a screen reader due to a visual impairment, the alternative text ensures that no information or ...
Color can be argued to have descriptive relevance for photos of this type based on: 1. it's a color photo (alt text can concisely describe, to replace a photo), 2. a class of viewer would see color in the color photo, and so might expect color to be described in alt text, 3. it's at a specific time in Baez' career, when her color palette tended ...
Otherwise, (if the image type is unspecified or is "frameless"), this text is used for the link title provided the link has not been suppressed with "|link=", and also for the alt text provided an explicit alt=Alt has not been supplied. The actual alt text for the displayed image will be one of the following, in order of preference:
The text of captions should not be specially formatted (with italics, for example), except in ways that would apply if it occurred in the main text. Several discussions (e.g. this one) have failed to reach a consensus on whether "stage directions" such as (right) or (behind podium) should be in italics, set off with commas, etc. Any one article ...
Do not use symbols that will not be read out loud such as ♥ (a heart symbol), or symbols which may be read incorrectly such as – (which may be read as "dash" instead of "minus"); instead, use images with appropriate alt= text. [1] Symbols that cause problems for screen readers may already have templates created to produce an image and alt text.
In the case of alt text, I think that all such descriptions are a sure sign that the alt text has become too detailed, acting as a description of the image rather than an alternative to it. Malleus Fatuorum 21:35, 30 March 2010 (UTC) C)