what is gustavoguanabara.github.io fr?

This is the public repository for Professor Gustavo Guanabara, a Brazilian technology educator. It collects materials originally used in his in-person classes and makes them freely available online. The repository acts as a central index, pointing visitors to course resources organized by topic. The first section covers HTML5 and CSS3, which are the two foundational languages for building web pages. HTML handles the content and structure of a page (text, images, links), while CSS controls the visual appearance (colors, layout, fonts). The course materials include downloadable PDF lesson files, exercise code, an online environment where students can run the exercises in a browser, and a set of design challenges to test what was learned. The second section covers JavaScript, the programming language that adds interactivity to web pages. It handles things like responding to button clicks, showing or hiding content, and updating the page without reloading it. The README notes that JavaScript is also a good first programming language for beginners. This section similarly provides PDFs, exercises with runnable examples, and programming challenges. The README is written in Portuguese, reflecting the primary audience of Brazilian students who follow Guanabara's courses, which he also publishes through the Curso em Video platform on YouTube. The courses are free and have attracted a large following in the Portuguese-speaking developer community. There is no installation required to use these materials. The PDF files can be downloaded directly, and the exercises run in the browser via hosted links. Anyone learning web development from scratch and comfortable reading Portuguese will find the structure straightforward to follow.