CSS Framework

What is Bootstrap?

Bootstrap CSS is the most widely used CSS framework for creating responsive and mobile-first web pages. This free and open-source toolkit includes a responsive grid system, universal CSS applications, many pre-built components like buttons, navbars, forms, and additional JavaScript plugins to accelerate development. Bootstrap makes it easy to create websites.

Bootstrap has grown in popularity in web development because it enables developers to design responsive websites with minimal time and effort. HTML, CSS, and JavaScript are the foundations of the Bootstrap system. With Bootstrap, you can create and modify with Sass, use prebuilt grid systems and parts, and bring creations to life with sophisticated JavaScript plugins.


Bootstrap, established by a designer and a developer at Twitter, has emerged as one of the world's leading front-end frameworks and open-source applications. Bootstrap was invented by @mdo and @fat on Twitter in mid-2010. It was previously known as Twitter Blueprint before becoming an open-source framework.

Twitter launched its inaugural Hack Week a few months into development, and the project blossomed as coders of various skill levels rushed in without any external leadership. It functioned as the company's style guide for internal tool development for almost a year before its public release, and it still does so today.


Easy Learning Curve

When learning Bootstrap, you must adhere to the rules established by other developers. You have to stick to specific conventions, which makes mastering Bootstrap effortless.

Responsive Grid

Instead of spending hours developing your grid, Bootstrap has a standardised grid system. In addition, the grid structure is responsive and adapts to multiple screen sizes and devices.


Bootstrap's most crucial feature is that it is mobile-first, which implies that its layout is optimised for mobile devices.

Vast Community

Bootstrap has a large community that is growing as more creators and programmers utilise the framework for their creations.

Image System

Bootstrap has its code for dynamically resizing pictures based on screen size. Apply the .img-fluid class to your images, and the specific CSS rules will handle the rest.


Bootstrap offers documentation for developers just starting with this framework. Every line of code is documented and discussed in depth.

Open Source

The best thing is that it is free to download and use.

Bootstrap Package Components

Scaffolding: Bootstrap has a basic framework that includes a Grid System, link styles, and a backdrop.
CSS: Bootstrap includes global CSS settings, basic HTML element styles, and a sophisticated grid system.
Components: Bootstrap has many reusable components that give iconography, dropdowns, navigation, notifications, pop-overs, and more.
Customise: Bootstrap components can be customised, and you can use fewer variables and jQuery plugins to create your unique design.
JavaScript: Bootstrap has a plethora of custom jQuery plugins. You can include them all at once or one at a time.

Use Cases

Creating responsive websites
Creating multi-column layouts on websites
Developing dynamic tabs to manage vast contents
Creating a carousel or image slider for web pages
Customising everything with Sass
Building different types of alert boxes
Saving time in development
Creating mobile-first websites
Developing different variations of the navigation bar

Frequently Asked Questions

Is Bootstrap good for web development?

Bootstrap is a popular framework for creating websites and web applications. It is an excellent tool for web developers and designers because: It accelerates development. In addition, it simplifies and standardised responsive design.

Is Bootstrap easy?

Although it is simple to use, there is a slight learning curve initially. Learning the various classes and components, which might be hard for anyone with no technical skills, takes time.

Which companies use Bootstrap?

Companies like Upwork, Udemy, LinkedIn, Spotify, Snap, Duolingo, Forbes, and many others use Bootstrap in their development projects.