The Ultimate HTML5 & CSS3 Series: Part 1 - Exrecise

In the box’s exercise, I don’t understand why doesn’t exist the selector for the class=“box”. When it was used it in the <div class=“box”> either in style.css nor normalize.css

Can you try to rephrase your question? I don’t understand what you try to ask.

Sorry, I was wrong about the question, because I didn’t see the .box selector in the style.css file, but it is there.