How to achieve dark mode on a web page using one line of CSS?

In the article, the author showcases how effortlessly one can implement dark mode on a website using CSS. The tip presented is a concise one-liner of CSS code that simplifies the addition of dark mode. This allows web developers to save time and avoid complex scripts, as they can simply add a single line to their stylesheets. The author also explains the growing popularity of dark mode and its benefits, such as reducing eye strain during the night. The changes made by this simple code can significantly enhance user experience and make website usage more comfortable. Overall, the article serves as a great guide for those looking to add modern UI elements to their projects quickly and effectively.