What the person updating the site needs to know.
ADDING IMAGES
Write alt text describing what the image conveys.
Leave it empty for purely decorative images.
USING HEADINGS
Choose the level by structure, not by how the text looks.
Do not skip levels.
Do not use bold text as a substitute for a heading.
WRITING LINKS
Describe the destination. "Read our guide to X", not "click here".
WRITING CONTENT
Short paragraphs Plain language Explain jargon Meaningful headings
PASTING FROM ELSEWHERE
Paste as plain text. Pasted formatting brings inconsistent styling and sometimes broken markup.
ADDING TABLES
Only for tabular data, with proper header cells.
ADDING DOCUMENTS
Prefer a web page. If a PDF is necessary, ensure it contains real text.
COLOUR
Do not rely on it to convey meaning.
THE THREE HABITS
Alt text, heading levels, descriptive links.
If a content editor does those three consistently, most content-level accessibility is handled.