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img ARIA 역할은 한 개의 이미지로 취급되어야 하는 페이지 콘텐츠 내의 여러 요소들을 식별할 때 사용됩니다. 이 요소들은 이미지, 코드 조각, 텍스트, 이모티콘 또는 시각적인 방식으로 정보를 전달하기 위해 결합된 다른 콘텐츠일 수 있습니다.
<div role="img" aria-label="여러 이미지의 설명"> <img src="그래픽1.png" alt=""> <img src="그래픽2.png"> </div>
role="img"을 이용하면 어떤 집합의 콘텐츠(예를 들어 이미지, 비디오, 오디오, 코드 조각, 이모티콘 또는 그 외) 이던 하나의 이미지로 식별 가능합니다.
You shouldn't count on the alt text of individual elements images for context to assistive technologies; most screenreaders will consider the element with
role="img" set on it to be to be like a black box, and not access the individual elements inside it. Therefore, provide a comprehensive overall descriptive alt text for image, either in the surrounding text, or by using an
aria-label attribute, with optional alt attributes for search engines or sited users to be written to the page should an image fail:
<div role="img" aria-label="Description of the overall image"> <img src="graphic1.png" alt=""> <img src="graphic2.png"> </div>
If you wish to add a caption or label to your image that is visible on the page, you can do using:
aria-labelledbywhen the text is a concise label.
aria-describedbywhen the text is a longer description.
<div role="img" aria-labelledby="image-1"> ... <p id="image-1">Text that describes the group of images.</p> </div>
SVG and role="img"
If you are using embedded SVG images in your page, it is a good idea to set
role="img" on the outer
<svg> element and give it a label. This will cause screen readers to just consider it as a single entity and describe it using the label, rather than trying to read out all the child nodes:
<svg role="img" aria-label="Description of your SVG image"> <!-- contents of the SVG image --> </svg>
Using role="img" to confer meaning that is obscured or implied
In certain cases, assistive technology users won't be able to get the meaning of content expressed in certain ways, through certain media, or implied in certain ways. This is obvious to fix in the case of images (you can use the
alt attribute), but in the case of mixed or other certain types of content it is not so obvious, and
role="img" can come into play.
For example, if you use emojis in your text, the meaning might be obvious to a sighted user, but someone using a screenreader might get confused because the emojis might have either no text representation at all, or the alternative text might be confusing and not match the context it is being used in. For example, take the following code:
<div role="img" aria-label="That cat is so funny"> <p> 🐈 😂 </p> </div>
🐈 😂 are entity references for emojis read out as "Cat" and "Face with tears of joy", but this doesn't necessarily make sense — the implied meaning is possibly more like "That cat is so funny", so we include that in an
aria-label along with
This seems to work OK across some browser/screenreader combinations, but some of them end up reading the label out twice. Use with caution and test thoroughly.
Another example where this might be suitable is when using ASCII emoji combinations, like the legendary "Table flip":
<div role="img" aria-label="Table flip"> <p> (╯°□°）╯︵ ┻━┻ </p> </div>
Associated WAI-ARIA Roles, States, and Properties
- An accessible name is required. An aria-label attribute
|Accessible Rich Internet Applications (WAI-ARIA) 1.1
The definition of 'img' in that specification.