CSS, which regulates the size, color, and layout of websites, has been decided. Many candidates were posted on GitHub during the selection process. Below is the CSS3 logo that has been used until now.

As you progress through the projects — starting by creating a small personal website for imaginary friend Anna, before eventually coding your own CSS-powered robot — you’ll unlock skills.

Back in 2012, Mozilla launched Thimble, an online code editor for teaching the basics of HTML, CSS and JavaScript. Over time, though, things got pretty quiet around the project as other browser ...