However, if images of text are used, the text alternative should contain the same words as in the image.Ĭomplex images such as graphs and diagrams: To convey data or detailed information, provide a full-text equivalent of the data or information provided in the image as the text alternative. If the image is not a logo, avoid text in images.
Images of text: Readable text is sometimes presented within an image. Examples of such images are a printer icon to represent the print function or a button to submit a form. The text alternative should be at least a short description conveying the essential information presented by the image.ĭecorative images: Provide a null text alternative ( alt="") when the only purpose of an image is to add visual decoration to the page, rather than to convey information that is important to understanding the page.įunctional images: The text alternative of an image used as a link or as a button should describe the functionality of the link or button rather than the visual image. Informative images: Images that graphically represent concepts and information, typically pictures, photos, and illustrations. This tutorial demonstrates how to provide appropriate text alternatives based on the purpose of the image: This ensures that images can be used by people with various disabilities. Images must have text alternatives that describe the information or function represented by them. CSS Fonts CSS Transforms HTML5 MathML WAI-ARIA
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