Progressive enhancement aids accessibility from "summary" of Web Accessibility by Yeliz Yesilada,Simon Harper
Progressive enhancement is a crucial approach in web development that ensures a solid foundation for accessibility. By starting with a basic version of a website that contains essential content and functionality, developers can then layer on enhancements to provide a richer experience for users with more advanced browsers or devices. This strategy not only caters to a wider range of users but also improves accessibility for those with disabilities. Accessibility is about making sure that everyone, regardless of their abilities or limitations, can access and use a website effectively. Progressive enhancement aligns well with this goal by focusing on core functionality and content first, which can be easily accessed by all users. As enhancements are added, they should be designed in a way that does not compromise the accessibility of the basic version of the site. For example, adding interactive features like drop-down menus or sliders can enhance the user experience for those with more advanced browsers. However, it is essential to ensure that these enhancements are not the only way to access critical information on the website. Users who rely on screen readers or keyboard navigation should still be able to navigate the site and access its content without any barriers. By following the principles of progressive enhancement, developers can create websites that are not only visually appealing but also highly accessible to all users. This approach emphasizes the importance of starting with a strong foundation that prioritizes accessibility and then building upon it to enhance the user experience further. In this way, progressive enhancement becomes a valuable tool for improving accessibility and ensuring that all users can benefit from the content and functionality of a website.
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