alt attribute

In the sky flies a red flag with a white cross whose vertical bar is shifted toward the flagpole.

The alt attribute is used in HTML and XHTML documents to specify alternative text (alt text) that is to be rendered when the element to which it is applied cannot be rendered. It is also used by "screen reader" software so that a person who is listening to the content of a webpage (for instance, a person who is blind) can interact with this element. The attribute was introduced in HTML 2 and in HTML 4.01 was required for the img and area tags. It is optional for the input tag and the deprecated applet tag.

单词	Alt tag
释义	Alt tag 原声例句《卫报》（文章版） Researchers at LAION took a chunk of the Common Crawl data and pulled out every image with an " alt" tag, a line or so of text meant to be used to describe images on web pages. LAION 的研究人员从 Common Crawl 数据中提取了一大块，并提取出带有 “alt” 标签的每张图像，这是一行左右的文本，用于描述网页上的图像。英语百科 alt attribute The alt attribute is used in HTML and XHTML documents to specify alternative text (alt text) that is to be rendered when the element to which it is applied cannot be rendered. It is also used by "screen reader" software so that a person who is listening to the content of a webpage (for instance, a person who is blind) can interact with this element. The attribute was introduced in HTML 2 and in HTML 4.01 was required for the `img` and `area` tags. It is optional for the `input` tag and the deprecated `applet` tag.
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Alt tag

alt attribute