Q. What is a CSS selector? (A) A CSS selector is the CSS class name (B) A CSS selector is the set of properties that are going to be applied on HTML elements (C) A CSS selector is name of CSS file. (D) A CSS selector is the first part of a CSS Rule. It may an HTML element or pattern of elements. 👁️ Show Answer 💬 Discuss 🔗 Share ⚡Menu ✅ Correct Answer: (D) A CSS selector is the first part of a CSS Rule. It may an HTML element or pattern of elements.