Alternative text (alt text) is meant for readers who cannot see an image, such as blind readers and readers who use a text or mobile browser. It should summarize an image's purpose, and should not duplicate its caption. Every image should have alt text, except for purely decorative images, which should instead have "|alt=|link=".
Mario Bros
The following table shows images and captions on the left, and alt text and captions on the right: the right column is what a visually impaired reader will hear. This table was computed from the copy of Mario Bros cached on 23 May 2013 at 06:08.
| Image and thumbnail | Text description |
|---|---|
 | Player characters Mario and Luigi surrounded by the three enemies in the game.
|
|
Screenshot of the original 1983 arcade version of Mario Bros., showing Mario about to defeat an enemy.
|
 | A photograph of a middle-aged Japanese man.
|
|
Screenshot from Mario Clash (1995) for the Virtual Boy.
|
 | 4.5/5 stars
|
| 4/5 stars
|
 | Book icon
|
 | Wikipedia book
|
| Wikipedia book
|
 | Portal
|
 | This is a good article. Click here for more information.
|
