The topic " HTML5 Features - The Semantic Header and Footer " highlights the importance of the <header> and <footer> tags introduced in HTML5, which enhance the structure and semantics of web pages. Explanation The <header> and <footer> tags are part of HTML5's semantic elements, designed to clearly define the structure of a webpage. They make the code more readable for developers and improve accessibility for assistive technologies like screen readers. <header>: Represents the introductory content or navigation section of a webpage or a section of it. It's typically used for elements like titles, logos, or navigation menus. <footer>: Represents the footer of a webpage or a section. It's commonly used for copyright information, contact details, or additional navigation links. Example Here’s how you can use the <header> and <footer> <!DOCTYPE html> <html lang="en"> <head> <meta c...