Here's a project idea for a website using HTML, CSS, and JavaScript:

  1. Create a Personal Portfolio Website: Design a website that acts as a personal portfolio, displaying your skills and previous work.

  2. Use HTML to create the basic structure of the website and layout the different sections, such as the header, main content area, and footer.

  3. Use CSS to style the website, including adding colors, fonts, and creating a responsive design that looks good on different screen sizes.

  4. Use JavaScript to create interactive elements, such as a photo carousel or a navigation menu that drops down when clicked.

  5. Add a contact form using HTML and JavaScript, that allows visitors to contact you via email

  6. Add a simple animation using CSS or JavaScript, to make your website more attractive

  7. Add a responsive navigation bar that changes according to the screen size

This project will give you a good understanding of how the three technologies work together to create a functional and visually appealing website. As you work on the project, you can continue to build on your skills and add new features to make it more complex.