If your answer is "No, the image does not convey meaning", it is probably decorative and doesn't need a text description. Would it affect the meaning of the content?. Does this image convey any information?.The first step is to decide what type of image it is then what kind of text description it needs. Search engines are better able to index images with text descriptions.People on slow networks where images don't load properly or who have them switched off can read the text description shown in place of the image in some browsers.People browsing with speech recognition can target image buttons and graphical links by including the text description in the voice command if the image doesn't load and the text description is visible.People browsing with a desktop screen reader or browsing with a mobile screen reader who cannot see the image can hear and understand its meaning or purpose.This means people may be unable to access content or perform related tasks.Īppropriate text descriptions provide the following benefits: However, some screen readers (e.g., JAWS and NVDA) can be configured by their users to recognize these tags.Text descriptions are primary content, and when images do not have a text description, anyone who cannot see the image will not know its purpose. If you decide to use visual emphasis, we suggest using the semantic tags Strong and Emphasis, and that you avoid using Bold and Italics Įven if you do use Strong and Emphasis tags, there is no guarantee that they will be communicated by a screen reader. We recommend you use the written text itself to emphasize important content. They are used as a way of indicating where you are in a document Conclusion However, headings should not be used to emphasize text. Headings save time for all website users. Using shortcut keys, screen reader software can read the headings on a page and navigate to the chapter of interest. Heading tags are important for accessibility allowing screen reader users to quickly scan a page. However, this information will not be conveyed to someone using a screen reader. If your text should have bold styling but should not be communicated as having emphasis, then using a style attribute or CSS (Cascading Style Sheets) will achieve this. HTML Style attributes are used to add style to an element, such as color, font, size, and more.įor example, to change the appearance of text to bold it can be declared in HTML using: style="font-weight:bold" We advise against using bold, and italic tags when you want to emphasize a word or passage. JAWS) can be configured to point out bold and italics. Screen readers do not normally announce these tags to the user. The bold, and italic tags are listed as WCAG compliance Level A Errors. do not use these methods) Bold and italics The Web Content Accessibility Guidelines (WCAG) discuss these methods in this article - Using semantic markup to mark emphasized or special text. JAWS and NVDA) can be configured to announce the emphasis, but enabling this requires some technical knowledge. Semantic mark-up is better than mark-up used purely for styling but unfortunately, many screen readers ignore these tags by default. In some cases, they can serve as an indication of emphasis to a screen reader. The Strong tag,, and the Emphasis tag,, are considered Semantic Markup that allows for added meaning to your content.
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