What is the
longdesc attribute? Can you explain its purpose?
longdesc attribute of the
img element has been around since HTML 4 and is also valid in HTML5. This attribute is designed to provide a more detailed description of an image, compared to the information offered in the
alt attribute. The interesting thing is that instead of providing a description by itself (like the
alt attribute does),
longdesc points to a hyperlink containing the description.
An example of the use of
longdesc is presented below:
The shown map of Italy illustrates its division in regions...