a11yTips — State the presence of long descriptions from…

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State the presence of long descriptions from complex images

no. 059

Make sure ALT attribute values of complex images announce adjacent full text descriptions

Providing an adjacent long description for a complex image is one thing, making sure users of assistive technologies are made aware that this long description is available is another. Whenever the adjacent long description of a complex image cannot be explicitly associated with the image itself, an indication of the presence of the long description needs to be provided in text.

To do so, simply use the ALT attribute value of the complex image to indicate that an [...]