




HTML <isindex> tag (Not supported in HTML5)
HTML <isindex> tag is used to provide a single line text input in a page to query a document. If user sent input to the server then server returns the list of page matching with the query. 
The <isindex> tag can be used anywhere in the document, but it would be preferable to use it within <head> tag. 
Note: Do not use <isindex> tag as it is not supported by HTML5, instead of it you can use form <input> which will do the same work. 
Syntax


    <isindex prompt = "Search your document here" />


Following are some specifications about the HTML <isindex> tag


Display
None


Start tag/End tag
Only Start tag (End tag forbidden)


An element of
Document Structure


Example


<!DOCTYPE html>

<html>

<head>

<isindex prompt = "Search your document here" />

</head>

</html>



Attribute 
Tag-specific Attribute


Attribute
Value
Description


prompt
hint-text
It adds value as a label for the search text field. 


action
URL
It is used to send the query to different URL instead of current document. 


Global Attribute
HTML <isindex> tag supports the Global Attributes. 
Event attribute
HTML <isindex> tag supports the Event Attributes. 
Supporting Browsers

Element Chrome IE Firefox Opera Safari
<isindex>NoNoNoNoNo














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