#### Explanation of the HTML Code
- The HTML code provided creates a simple webpage for a blog interview with Jane Chang, the Design Director of Big 3 Media.
- The webpage includes a header, main content area, sidebar with related topics, and a footer.
- The header contains the title of the blog interview.
- The main content area includes a section for the interview content.
- The sidebar lists related topics with clickable links.
- The footer displays the copyright information.
#### Interactive CSS and JS
To make the webpage more interactive, you can incorporate CSS animations for visual effects and use JavaScript to create interactive elements such as dropdown menus, image sliders, or form validations. These additions can enhance user engagement and provide a more dynamic user experience.
Feel free to explore various CSS and JavaScript libraries to further enhance the interactivity and visual appeal of the webpage.