The article from the Content Hub discusses the persistent issue of cross-browser compatibility bugs in web development, emphasizing that while JavaScript has traditionally been blamed for such issues, HTML and CSS can also contribute to compatibility problems. It highlights the importance of identifying and handling these errors, particularly those that are simple yet often overlooked. Validators and linters are recommended tools for detecting syntax errors and bad coding practices in HTML and CSS. The article also notes that browser developer tools can assist in finding CSS errors, though HTML errors are less visible due to automatic corrections by browsers. It stresses the importance of checking for unsupported HTML and CSS elements across different browsers, citing older versions of Internet Explorer and Google Chrome as examples of browsers with limited support for certain features. The author, Deeksha Agarwal from LambdaTest, urges developers to test their websites across various browsers to identify and rectify these issues, advocating that it is never too late to address compatibility problems.