The HTML5 <area> tag is used for adding details to specific areas within an image map. An image map is an image with different regions that can be clicked if seen on the browser. 

The HTML5 <area> tag is supported by all major browsers like Internet Explorer, Google Chrome, Firefox, Safari and Opera. 

Slight differences can be observed when <area> tag is used for HTML5 and HTML 4.01. It is because, HTML5 has incorporated new attributes which cancels out the other attributes that are used for HTML4.01. The attributes for HTML5 <area> tag is enumerated below. The new attributes that are used is HTML5 are also specified.