HTML <input> alt Attribute

Example

An HTML form with an image that represents the submit button:

<form action="/action_page.php">
<label for="fname">First name:</label>
<input type="text" id="fname" name="fname">
<input type="image" src="submit.gif" alt="Submit" width="48" height="48">
</form>

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Definition and Usage

The alt attribute provides an alternate text for the user, if he/she for some reason cannot view the image (because of slow connection, an error in the src attribute, or if the user uses a screen reader).

Note: The alt attribute can only be used with <input type="image">.