Modern Web Design with HTML5, CSS3, and JavaScript - Website Review and Conclusion

The video tutorial covers the process of designing a simple website layout, including a header, navigation, main content area, and footer. It explains how to make the website responsive using floats, flexbox, and CSS grid. The tutorial demonstrates the use of flexbox for navigation bars and CSS grid for structuring page elements. It also shows how to add and adjust columns within the layout, and emphasizes the ease of customizing the design with CSS updates and color palettes.

What is the significance of using flexbox for the navigation bar?

Explain how to add a fourth column to the website layout.