CSS custom properties

Hello @valeushu!

Your solution looks excelent!

I have just one suggestion:

• In order to make your HTML code more semantic, don't skip heading levels - start with <h1>, then use <h2>, and so on.. Unlike what most people think, it's not just about the size and weight of the text.

📌 The <h1> to <h6> tags are used to define HTML headings.

📌 <h1> defines the most important heading.

📌 <h6> defines the least important heading.

📌 Only use one <h1> per page - this should represent the main heading/title for the whole page.

This change has little or not effect at all on the project, but it makes your HTML code more semantic, improving SEO optimization as well as the accessibility of your project.

I hope it helps!

Other than that, you did a great job!