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To make your images and animation accessible, you must provide appropriate alternate text (that is, Alt text) within the image's HTML tag.

为使图像和动画可访问，您必须在图像的HTML标记内提供相应的替代文本(即，ALT文本)。

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The W3C HTML5 Specification (Working Draft) explicitly recognizes this and provides detailed examples for alt text depending on the function and context of the image.

W3C的HTML5规范(草案) 明确指出了这一点，并详细示范了如何撰写基于功能和上下文的替换文本。

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