Use icons, and particularly their text alternatives, consistently throughout your content.
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Provide a pronunciation for words that are spelt the same, but mean different things when pronounced in different ways.
The accessibility guidelines require grade 9 readability for content. Otherwise we should provide supplementary content (visuals, for example), or an easy-to-read summary.
The accessibility guidelines require we expand or define any abbreviations in our content. Often it’s even better to avoid using abbreviations, especially acronyms and initialisms.
The accessibility guidelines require that we explain or define any jargon, idioms or unusual words in our content. Often it’s even better to avoid using those words.
If you use foreign language words or phrases in your content, you need to identify the foreign language using the lang attribute.
Use headings to organise the sections or topics within an article or document. Headings break content into more manageable chunks, making a page or topic easier to understand.
Write descriptive headings, sub-headings and labels. This will help users understand what your content is about, decide if it is relevant and go directly to the information they are looking for.
Write links that clearly describe their purpose or content. Meaningful links are vital for making content more accessible to people with disabilities.
Write a descriptive title for your web pages and any documents you publish online. You’ll help people find your content if your title is meaningful to them.
Avoid opening links in new windows. If you must, include a warning within the link.
Use styled text rather than an image of text wherever it’s technically possible. An image of text is allowed when users can customise the text style or an image is essential.
Use colours that offer a sufficient contrast ratio between text and background colours, unless the text is decorative, incidental or part of a logo.
Don’t use images that flash more than three times per second unless the colours are dim enough to reduce the likelihood of causing a seizure.
Don’t use colour alone to convey information because not everyone has normal colour vision. For most web writers, this means being careful about choosing images. But you may also need to be careful about applying colour to text.