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HTML | alt attribute

  • Last Updated : 30 Jun, 2021

The HTML alt attribute is used to provides an alternate tag that is used to show or display something if the primary attribute i.e., the <img> tag, fails to display the value assigned to it.
Supported tags: 
 

Attribute Values: It contains single value text which is used to specify the alternative text for supported element, if image is not displaying.

Example: Img alt attribute. 
 

html




<!DOCTYPE html>
<html>
 
<head>
    <title>
        HTML img alt Attribute
    </title>
</head>
 
<body>
    <h1>GeeksforGeeks</h1>
 
    <h2>HTML img alt Attribute</h2>
 
    <img src=
        alt="GeeksforGeeks logo">
 
</body>
 
</html>

Output: 
Before: 
 



After: 
 

Example: Area alt attribute. 
 

html




<!DOCTYPE html>
<html>
 
<head>
    <title>
        HTML area alt Attribute
    </title>
</head>
 
<body style="text-align:center;">
    <img src=
        alt="alt_attribute" width="300" height="119" class="aligncenter"
        usemap="#shapemap" />
 
    <map name="shapemap">
         
        <!-- area tag contained image. -->
        <area shape="poly" coords="59, 31, 28, 83, 91, 83" href=
        alt="Triangle">
         
        <area shape="circle" coords="155, 56, 26" href=
        alt="Circle">
         
        <area shape="rect" coords="224, 30, 276, 82" href=
        alt="Square">
    </map>
</body>
 
</html>

Output: 
 

Example: Input alt attribute. 
 

html




<!DOCTYPE html>
<html>
 
<head>
    <title>
        HTML Input alt Attribute
    </title>
</head>
 
<body style="text-align:center;">
 
    <h1 style="color:green;">
            GeeksForGeeks
        </h1>
 
    <h2>HTML Input alt Attribute</h2>
    <input id="myImage"
        type="image"
        src=
        alt="Submit"
        width="48"
        height="48">
</body>
 
</html>

Output: 
 

Supported Browsers: The browsers supported by HTML | alt attribute are listed below: 
 

  • Google Chrome
  • Internet Explorer
  • Firefox
  • Apple Safari
  • Opera

 

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