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HTML rel Attribute
The rel attribute of the <area> element is used to set the relationship between the current document and the linked document. This attribute introduced in HTML5 for the <area> element.
Following is the syntax −
<area rel="value">
Above, value can be any of the following options that links to −
- alternate: An alternate version of the document, for example, to print.
- author: Author of the document
- bookmark: Permanent URL used for bookmarking
- help: Help document
- license: Copyright information
- next: Next document in a selection
- nofollow: Links to a link which you do not want that the Google indexing to follow that link.
- noreferrer: Specifies that the browser should not send a HTTP referer header if the user follows the hyperlink
- prefetch: Specifies that the target document should be cached
- prev: Previous document in a selection
- search: Links to a search tool for the document
- tag: A tag for the current document
Let us now see an example to implement the rel attribute of the <area> element −
Example
<!DOCTYPE html> <html> <body> <h2>Learning</h2> <p>Learn these technologies with ease....</p> <img src = /images/usemap.gif alt = "usemap" border = "0" usemap = "#tutorials"/> <map name = "tutorials"> <area shape = "poly" coords = "74,0,113,29,98,72,52,72,38,27" href = "/perl/index.htm" alt = "Perl Tutorial" target = "_blank" rel="alternate"/> <area shape = "rect" coords = "22,83,126,125" alt = "HTML Tutorial" href = "/html/index.htm" target = "_blank" /> <area shape = "circle" coords = "73,168,32" alt = "PHP Tutorial" href = "/php/index.htm" target = "_blank" /> </map> </body> </html>
Output
In the above example, we have set the map on the following image −
<img src = /images/usemap.gif alt = "usemap" border = "0" usemap = "#tutorials"/>
Now, we have set the map and area within it for shape −
<map name = "tutorials"> <area shape = "poly" coords = "74,0,113,29,98,72,52,72,38,27" href = "/perl/index.htm" alt = "Perl Tutorial" target = "_blank" rel="alternate"/> <area shape = "rect" coords = "22,83,126,125" alt = "HTML Tutorial" href = "/html/index.htm" target = "_blank" /> <area shape = "circle" coords = "73,168,32" alt = "PHP Tutorial" href = "/php/index.htm" target = "_blank" /> </map>
Above, we have set the relationship for the alternate version −
rel="alternate"
Updated on: 30-Jul-2019
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