Web accessibility can be defined as the degree to which a product, device, service, or environment is readily available to all users. Accessible web design enables all users to access the web content and systems regardless of their location, experience, device or disability.
While accessibility of web content is often aligned with catering to disabled users, there are also significant benefits for the majority of users if content is accessible. Rather than thinking about whether or not e-learning content and systems are accessible, accessibility can be considered along a scale of more or less accessible. This means that every improvement you can make to the accessibility of e-learning content or systems, no matter how small, will help users.. Even with limited technical knowledge, small changes to the way you select, develop and use e-learning content and systems can have a big impact.