h1, h2, h3 {color: blue;} is an example of _____

🎲 Try a Random Question  |  Total Questions in Quiz: 65  |  🧠 Study this quiz with Flashcards
This question is part of a full practice quiz:
CSS 3 — practice the complete quiz, review flashcards, or try a random question.


1. h1, h2, h3 {color: blue;} is an example of _____