Modern Web Design with HTML5, CSS3, and JavaScript - Introduction – Common Questions

This video tutorial covers common CSS questions and answers, starting with creating a simple HTML page and applying CSS. It explains the CSS box model, including margins, padding, and borders, with code snippets. The tutorial also addresses the CSS Z-Index and frequently asked questions from students. It delves into pseudo classes and elements, and concludes with advanced CSS techniques like nth-child. Source code is provided for hands-on practice.

Explain the concept of Z-index in CSS and how it is used.

What is the nth-child selector in CSS and how can it be used for selections?