Alt Text describes images to users who are unable to view the images. A user may be unable to view images due to physical limitations or browser incompatibilities. Alt text should be succinct and describe the content and function of an image. Any text displayed within an image should be included in the alt text.
Example Alt Text: Stack of blueberry pancakes with maple syrup.
Text Within Images
Screen reading devices cannot detect text within an image. Additionally, images may not render properly depending on a user's browser or device. The text should be added to appropriate content widgets and should not be included in images unless as decoration or included in Logos.
Alt Text or Title Text?
The text contained in the alt attribute is used to describe the image to users who cannot view the image. The alt attribute will display when users hover their mouse over an image.
Alt text is required for compliance with the Americans with Disabilities Act (ADA) and provides a backup method of providing information to users who cannot view images. Title Text (labeled Display Name in Public Images) is not required for compliance but may provide additional information for users.
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