此外，aria-labelledby接受一个用空格分隔的ID列表（假设ID没有空格）。aria-labelledby属性接受一个以空...
TOP-RIGHT: it has role button, so the label is Wombat. BOTTOM-LEFT: No labe, because label need id to bind to the input field, so need to add id="roo" BOTTOM-RIGHT: aria-labelledby overwrite aria-label, so it is "Wallaby"
此元素必须包含div元素的标签。如果您没有标签作为可见文本，则应使用aria-label。
一个添加标签的方法是在 region 内添加一个 heading 元素,然后使用 aria-labelledby 属性来引用它。 给section 元素添加以下 aria-labelledby 属性: student-info html-questions css-questions 然后,在每个 section 元素中,嵌套一个 h2 元素,其 id 与相应的 aria-labelledby 属性匹配。 给每个 h2 添加适当的文本...
'aria-labelledby' overwrite 'aria-label' overwirte native element label. TOP-LEFT: aria-label overwrite native element label, so it is Gumnut. TOP-RIGHT: it has role button, so the label is Wombat. BOTTOM-LEFT: No labe, because label need id to bind to the input field, so need to ...
myModalLabel"元素。此元素必须包含div元素的标签。如果您没有标签作为可见文本，则应使用aria-label。
What happens when roles are added? If the role is an interactive role (that can be clicked on such as button or link) or an image role the aria-label or aria-labelledby overrides the text If its a heading role , aria-label or aria-labelledby overrides it on NVDA, VoiceOver and Talk...
1.1中的新功能。aria-errormessage的值是包含错误文本的另一个对象（类似于aria-labelledby和aria-...
<figure role="img" aria-labelledby="cow-caption"> <pre> ___ < I'm an expert in my field. > --- \ ^__^ \ (oo)\___ (__)\ )\/\ ||---w | || || </pre> <figcaption id="cow-caption"> A cow saying, "I'm an expert in my field." The cow is illustrated using ...
In Internet Explorer, if you usearia-labelledbywith multipleidreferences oraria-describedbywith single or multipleidreferences, the referenced elementsmust bewhat Microsoft terms asaccessible HTML elements. The following example ofaria-labelledbywith multiple references uses thelabelelement as it makes sen...