Headings are classified into levels from one to six. It also affects the way you organize content and guide readers through a page. Typically, math equations are added to the web in the form of an inaccessible image, which cannot be read by screen readers unless it has Alt-Text included. Then choose Alt Text. Add a title for your object, then a description. How To Write Alt Text and Image Descriptions for the Visually Impaired If someone went on your website or profile with their eyes closed, would they still be able to find their way around? In other words, alt text is content. Do one of the following: Right-click the object and select Edit Alt Text.

Select the object. And even then, the Alt-Text is often built with LaTeX, which read aloud, doesn’t really sound like math at all. The overall concept is easily understood and easily implemented into your accessibility programs. Alt text, or “alternative text” as the long-form name suggests, is a written text description for an image on the web. Text in images. If the Microsoft Office Accessibility Checker doesn't flag an object when it's missing alt text, you don't have to write alt text for it.

alt text and SEO. Alt text or text associated with the image should give you a clue about what will happen when you follow the link or activate the button. Be succinct. However not all text content may be visible at … Select Format > Alt Text. But authoring quality alt-text is a skill that needs to be developed. How to add alt text to an object? If you cannot avoid images of text, its best to have the exact same text in the alt attribute. It helps to describe the image for the reader to understand what the image is about. Quality alt-text can greatly contribute to the overall accessibility of documents when properly implemented. As more and more people develop vision impairments, they turn to assistive technology in order to access content. In WordPress, you can leave the field for “Alt text” in the Image settings empty. This is no coincidence: Google places a relatively high value on alt text. Punctuation within alt attributes: As for any text, using punctuation in the text alternative makes the information easier to understand. Include an anchor link at the top of the page to view the text alternative. When it comes to math, however, there are added challenges to accessibility.

They help readers to determine the overall outline of a document and to navigate to specific information of interest. Remember the SEO perks The main goal of alternative text is to provide clarity for visitors who are visually impaired. There are three keys to writing alt text for images that are also links (or buttons): Clickable images should have alt text OR be part of a clickable area that also includes HTML text which describes the image.

Alt-Text for Accessibility: Final Thoughts. Slicers and tables are examples of these objects. For one thing text can be kept as text in an svg, whole fragments of text not just a short sentence. Depending on the audience and country, there may be laws governing the level of accessibility required. Writing for accessibility goes way beyond making everything on the page available as text. Image with text According to WCAG, images of text are not allowed. As per the WCAG guidelines, text should not be included as part of an image.

For a deeper dive into coding and alt text standards, I highly recommend checking out the Web Content Accessibility Guidelines (WCAG).
Here are a few guidelines for writing alt text: Use alt text to convey the important content or function of the object. See an example of an infographic with a text alternative. Google’s article about images has a heading “Use descriptive alt text”. The text alternative should be on the page immediately following the infographic. For documents longer than three or four paragraphs, headings and subheadings are important for usability and accessibility. In particular, remember to add space characters in the alt text when there’s no space character between the image and adjacent text, to avoid having words running together when they are read by a screen reader.
It's sad if screenreaders ignore that extra information. In this example, we want to explain that this image is a map, and describe what it shows. If no alt attribute is present, the screen reader will read the file name for the image instead, which can be a major distraction to those using screen reading technology. In theory an svg image should be more accessible than a raster image with an alt-tag.