A powerful, extensible, and feature-packed frontend software toolkit. You can customize and build with Sass. Bootstrap is easy to use. You can either use the CDN, download the source code, or install it via the package manger. Bootstrap uses Sass to allow for modular and custom architecture. You can import only the components that you need, set global options such as gradients and shadows, and create your own CSS using our variables, maps and functions. You can import one stylesheet to get all the features of our CSS. You can customize Bootstrap by only including the CSS you require. Bootstrap 5 is constantly improving to make it easier to use CSS variables for global themes, individual components, or utilities. There are many variables that can be used to change colors, font styles, or any other aspect of Bootstrap 5.