Accessibility is the practice of designing products and services that are usable by people with different abilities and disabilities. Not only is it a legal and ethical requirement, but it also improves the UX for all users. To write accessible content, you must adhere to the Web Content Accessibility Guidelines (WCAG), which provide standards and best practices for creating web content that is perceivable, operable, understandable, and robust. When writing accessible content, it's important to use headings, lists, and tables to structure your content, as well as descriptive and meaningful links, labels, and buttons. Additionally, alternative text should be provided for images, captions for videos, and transcripts for audio. Contrast, color, and font size should be used to enhance readability and legibility. Furthermore, you should avoid using color, sound, or motion as the only way to convey information or feedback. Lastly, write in a logical and natural order that matches the visual and auditory presentation of your content.