




HTML <abbr> tag
HTML <abbr> tag is used to represent an acronym or abbreviation of a longer word or phrase, such as www, HTML, HTTP, etc. The content written between <abbr> tags renders with dotted underline in some browser. 
This tag can be used with "title" attribute (optional), and the value of title attribute will be pop-up when the mouse hovers over the content written between <abbr> tag. 
Syntax


<abbr title="HyperText Markup language">HTML</abbr>


Following are some specifications about the HTML <abbr> tag


Display
Inline


Start tag/End tag
Both Start tag and End tag 


Usage
Semantic/Textual


Example
With title Attribute:


<!DOCTYPE html>

<html>

  <head>

	<title>Abbreviation Tag</title>

   </head>

 <body>

	<h2>Abbreviation tag example</h2>

	<p><b>Hover mouse over the content and see the abbreviation</b></p>

               <abbr title="Hyper Text Transfer protocol">HTTP</abbr>

    </body>

</html> 



Example
Without title Attribute:


<!DOCTYPE html>

 <html>

 <head>

	<title>Abbreviation tag</title>

 </head>

  <body>

   <h2>Abbreviation tag Example</h2>

   <p><abbr>CPU</abbr> is brain of a Computer</p>

  </body>

</html>



Global attributes:
The <abbr> tag supports the global attributes.
Event Attributes:
The <abbr> tag supports the event attributes. 
Supporting Browsers

Element Chrome IE Firefox Opera Safari
<abbr>YesYesYesYesYes














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