Key decisions made at the design stage can make or break the accessibility of a website. But how do you know what those key decisions are, and why? The WCAG 2.0 accessibility guidelines do contain many clues, but the guidelines are large and complex and the design ideas on accessibility, are mixed up with all the ideas for developers and content authors. So here’s a condensed list of sensible and pragmatic design ideas to ensure accessibility, with simple examples and explanations of why they’re important. Topics covered: use of colour, text alignment and resizing, form placeholders and error messages, etc.