Can we make an interactive website by only using HTML/CSS?

It is possible to create an interactive website using only HTML and CSS, but it would be limited in functionality compared to one created using JavaScript or other programming languages. HTML and CSS are used for the structure and styling of a website, respectively, while JavaScript is used for adding interactivity and dynamic behavior.

Using HTML and CSS, you can create a website with clickable links, drop-down menus, and hover effects. However, these interactions are limited and are not true "interactivity" in the sense that the website is not able to respond to user input in real-time. For example, you cannot create a form that validates user input on the same page without refreshing, or create a game or a dynamic chart on the page without JavaScript.

One way to add interactivity to a website using only HTML and CSS is to use forms. Forms allow users to input information and submit it to a server for processing. However, forms can only be used for simple tasks such as sending emails or creating user accounts.

Another way to add interactivity using only HTML and CSS is to use the :hover pseudo-class in CSS. This allows elements on the page to change when the user's cursor hovers over them. However, this type of interactivity is limited and cannot be used for more complex interactions.

In conclusion, while it is possible to create an interactive website using only HTML and CSS, the functionality would be limited. JavaScript or other programming languages are needed to create more advanced interactions and dynamic behavior on a website. To create a fully functional and interactive website, it is recommended to use a combination of HTML, CSS, and JavaScript.