HTML | alt attribute
The HTML alt attribute is used to provide 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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