Scroll-driven animations can now be achieved using only CSS, allowing developers to create dynamic effects linked to user scrolling without relying on JavaScript. This guide explains the components of scroll-driven animations, including targets, keyframes, and timelines, and provides examples of implementing these animations effectively while considering accessibility.

Joel Dare advocates for using pure HTML and CSS for web development in 2025, emphasizing simplicity, speed, and security. He argues that many modern frameworks over-engineer solutions, while pure HTML and CSS provide a lightweight and efficient alternative that is accessible and easy to deploy. Dare highlights the environmental and accessibility benefits of smaller page sizes and standard HTML practices.

The author discusses the development of an alt text button for images on their website, inspired by a feature on Mastodon. By using HTML and CSS, they created a button that reveals alt text associated with an image, enhancing user experience and accessibility. The article also outlines the code structure, design challenges, and potential improvements for the solution.