HTML Tags – IsIndex Tag

What is HTML <isindex> tag ?

HTML <isindex> tag provides a single line search prompt for querying the contents of the document.

HTML <isindex> tag is used to display search strings in the current document.

HTML <isindex> tag can be used anywhere inside the document, but it would be preferable to use it within <head> tag.

HTML <isindex> tag remove in HTML5 specification.

How HTML <isindex> tag works ?

HTML <isindex> tag provides a single line text input in a page to query a document.

And if the user sents input to the server then server returns the list of page matching with the query.

HTML <isindex> tag element implementation is inconsistent, so its not supported correctly by browsers.

Why HTML <isindex> tag is used ?

HTML <isindex> element was used to create a single line search prompt for querying the contents of the document.

The same functionality can be achieved by using form <input> elements.

That is the reason HTML <isindex> was deprecated in HTML 4.01.

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Syntax :

<isindex promt="search" />

Example :

<!Doctype html>

    <title>HTML isindex Tag</title>
    <isindex prompt="Search" />
        h1 {
            color: blue;

        <h2>Abdul Kalaam</h2>
	Abdul Kalam was an Indian aerospace scientist and politician who served as the 11th President of India from 2002 to 2007.<br/> He was born and raised in Rameswaram, Tamil Nadu and studied physics and aerospace engineering.

Output :

<isindex> Tag Attributes

HTML <isindex> tag support following specific attributes.

1prompttextSpecify a label for the textarea.
2actionURLSpecify URL where send the query.

Global Attributes

HTML <isindex> tag support following global attributes.

1idunique_nameDeclared unique id for an element.
2classclass_nameDeclared one or more classnames for an element.
3stylestylesCSS inline styles specify an element.
4titletitleSpecify extra details of element contain, this will display as a “tooltip” for an elements.

Browser Compatibility

6Internet ExplorerNo