Baseline Widely available
The useMap
property on the HTMLImageElement
interface reflects the value of the HTML usemap
attribute, which is a string providing the name of the client-side image map to apply to the image.
A string providing the page-local URL (that is, a URL that begins with the hash or pound symbol, #
) of the <map>
element which defines the image map to apply to the image.
You can learn more about client-side image maps in our learning article Add a hitmap on top of an image.
Usage notesThe string value of useMap
must be a valid anchor for a <map>
element. In other words, this string should be the value of the appropriate <map>
's name
attribute with a pound or hash symbol prepended to it.
Consider a <map>
that looks like this:
<map name="mainmenu-map">
<area
shape="circle"
coords="25, 25, 75"
href="/index.html"
alt="Return to home page" />
<area shape="rect" coords="25, 25, 100, 150" href="/index.html" alt="Shop" />
</map>
Given the image map named mainmenu-map
, the image which uses it should look something like the following:
<img src="menubox.png" usemap="#mainmenu-map" />
For additional examples (including interactive ones), see the articles about the <map>
and <area>
elements, as well as the guide to using image maps.
<map name="infographic">
<area
shape="poly"
coords="129,0,260,95,129,138"
href="https://developer.mozilla.org/docs/Web/HTTP"
alt="HTTP" />
<area
shape="poly"
coords="260,96,209,249,130,138"
href="https://developer.mozilla.org/docs/Web/HTML"
alt="HTML" />
<area
shape="poly"
coords="209,249,49,249,130,139"
href="https://developer.mozilla.org/docs/Web/JavaScript"
alt="JavaScript" />
<area
shape="poly"
coords="48,249,0,96,129,138"
href="https://developer.mozilla.org/docs/Web/API"
alt="Web APIs" />
<area
shape="poly"
coords="0,95,128,0,128,137"
href="https://developer.mozilla.org/docs/Web/CSS"
alt="CSS" />
</map>
<img
usemap="#infographic"
src="/shared-assets/images/examples/mdn-info.png"
alt="MDN infographic" />
img {
display: block;
margin: 0 auto;
width: 260px;
height: 260px;
}
Specifications Browser compatibility
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HTML:
3.2
| Encoding:
UTF-8
| Version:
0.7.3