Question:What are the purposes usemap attribute of <img> tag?
Answer "usemap" attribute is used to map image associated with image tag. It's value followed by # sign. Other associated tag <map> is used to incorporate with usemap attribute value.
example:
<img src="pic.jpg" usemap="#map_image" />
<map name="map_image">
<area shape="rect" coords="0,0,100,100" />
</map>
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What are the purposes usemap attribute of <img> tag?