How can CSS tags be validated for their correctness and functionality?

Validating JavaScript tags during testing ensures that scripts are loaded and executed correctly within the web application. Identifying script tags with load errors helps identify potential issues that may affect the application's functionality. CSS tags, on the other hand, can be validated to ensure that they are correctly linked, loaded, and applied to HTML elements. Checking for load errors and verifying attribute matches helps ensure that the visual presentation and styling of the web application are consistent and accurate.