An image map is a type of hyperlink that allows users to click on different parts of an image to be directed to different destinations. This is in contrast to a regular image link, which links the entire image to a single destination.
Image maps are created using the HTML <map> tag, which defines the clickable areas in an image. The <map> tag contains a number of <area> tags, each of which defines a single clickable area. Each <area> tag has a number of attributes, including the shape of the area, its coordinates, and the URL to which it links.
There are two main types of image maps: client-side image maps and server-side image maps. Client-side image maps are processed by the web browser, while server-side image maps are processed by the web server.
Client-side image maps are the most common type of image map. They are easy to create and use, and they do not require any special software on the web server. However, client-side image maps can be slow to load, and they can be difficult to make accessible to users with disabilities.
Server-side image maps are more complex to create and use, but they are generally faster and more accessible than client-side image maps. However, server-side image maps require special software on the web server.
Image maps are a versatile tool that can be used to create a variety of interactive web pages. They are often used to create maps, charts, and other images that contain multiple links. Image maps can also be used to create games and other interactive applications.
Here are some examples of image maps:
A map of the world with each country linked to a page with information about that country.
A chart with each bar linked to a page with more information about that bar.
A game where users click on different parts of an image to solve a puzzle.
Image maps can be a valuable tool for creating interactive web pages. However, it is important to use them carefully to ensure that they are accessible to all users.
Here are some tips for creating accessible image maps:
Use clear and concise labels for each clickable area.
Use a contrasting color for the clickable areas so that they are easy to see.
Provide a text alternative for each clickable area so that users who cannot see the image can still access the content.
By following these tips, you can create image maps that are both accessible and informative