The text provides a detailed guide on creating tooltips using only CSS, demonstrating how to utilize pseudo-elements like :before and :after to display tooltip text and arrows without additional HTML elements. It explains the process of using HTML custom data attributes to define tooltip text and positioning tooltips on different sides using CSS classes. The guide also covers styling techniques for tooltips, including adding arrows through border manipulation and implementing fade-in animations using opacity and transition properties. While the CSS-only approach is efficient for simple tooltips, the article notes that it cannot handle HTML content within tooltips, necessitating nested HTML elements for more complex needs. The guide concludes by emphasizing the advantage of using CSS for tooltips, highlighting tools like LogRocket for monitoring web performance and debugging.