Bootstrap

Bootstrap is a popular front-end framework for building responsive and mobile-first web projects. Here are some of the fundamentals of Bootstrap:

1. Grid System: Bootstrap's grid system is a responsive, mobile-first system that allows you to create layouts for different screen sizes. The grid is divided into 12 columns and you can use classes to specify how many columns your content should occupy.

2. Responsive Design: Bootstrap is designed to be mobile-first, meaning that it's optimized for mobile devices and then scaled up for larger screens. With Bootstrap, you can easily create responsive layouts that adjust to different screen sizes.

3. Typography: Bootstrap includes a set of default styles for headings, paragraphs, lists, and other text elements. You can also use utility classes to customize the typography in your project.

4. Components: Bootstrap includes a variety of UI components, such as navigation bars, forms, buttons, modals, and more. These components are designed to be easy to use and customize, and they can save you a lot of time when building your project.

5. JavaScript Plugins: Bootstrap includes a number of JavaScript plugins that add functionality to your project, such as carousels, tooltips, modals, and more.

6. Customization: Bootstrap is highly customizable, and you can easily modify the default styles and components to fit your project's needs. You can also use a custom build tool to select only the components and styles that you need.

Overall, Bootstrap is a powerful and flexible framework that can help you build responsive and mobile-friendly web projects quickly and easily.