CSS Validation
CSS Validation is the process of checking CSS (Cascading Style Sheets) code against established standards and specifications, such as those from the W3C (World Wide Web Consortium), to identify syntax errors, deprecated properties, and non-standard usage. It ensures that CSS is well-formed, cross-browser compatible, and adheres to best practices for web development. This is typically done using automated validators, such as the W3C CSS Validator, which analyze code and provide detailed error and warning reports.
Developers should use CSS validation during web development to catch errors early, improve code quality, and ensure consistent rendering across different browsers and devices. It is particularly important for maintaining accessibility, performance, and compliance with web standards in projects like responsive websites, large-scale applications, or when collaborating in teams to prevent style-related bugs. For example, validating CSS before deployment can help avoid layout issues in production environments.