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=".
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 New Super Mario Bros cached on 21 May 2013 at 00:53.
| Image and thumbnail | Text description |
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NewSuperMarioBrothers.jpg
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Mario rampages through a level after using a Mega Mushroom power-up, which grows him to an enormous size for a short period of time. Mario and surrounding objects are seen with a 2.5D effect.
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Mario rampages through a level after using a Mega Mushroom power-up, which grows him to an enormous size for a short period of time. Mario and surrounding objects are seen with a 2.5D effect.
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3.5/5 stars
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4.5/5 stars
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5/5 stars
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4/5 stars
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Book icon
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Wikipedia book
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Wikipedia book
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Portal
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