Difference Between Bootstrap and CSS

The main difference between Bootstrap and CSS is that the Bootstrap is a front-end framework while CSS is a style sheet language.  

The World Wide Web (WWW) consist of a large number of websites. The main programming languages required to build websites are HTML, CSS, and JavaScript. HTML is a markup language which is used to build the structure of web pages. CSS helps to make the webpage more presentable. JavaScript helps to make the webpage dynamic with form validation, animation, error handling etc. Furthermore, there are other technologies that help to develop website and web pages. Bootstrap is one of them. It is a front-end framework.

Key Areas Covered

1. What is Bootstrap
     – Definition, Functionality
2. What is CSS
     – Definition, Functionality
3. Difference Between Bootstrap and CSS
     – Comparison of Key Differences

Key Terms

Bootstrap, CSS, HTML

Difference Between Bootstrap and CSS - Comparison Summary

What is Bootstrap

Bootstrap is a framework for developing responsive and mobile friendly websites. It is free and easy to download. Bootstrap is a front-end framework that helps easier and faster web development. It includes various HTML and CSS based design templates for buttons, tables, forms, panels and many more.  

Bootstrap is popular due to a number of reasons. It allows the users to create responsive websites. A responsive website is capable of automatically adjusting itself to look better according to the device. Therefore, whether the user views the website from a smartphone or a desktop, the website will appear the same.

Main Difference - Bootstrap vs CSS

A Bootstrap contains a set of features. It has an advanced grid system. It includes a number of reusable components to build dropdowns, alerts, popups, navigations, etc. The user can also include a lot of jQuery plugins in the project. The components and jQuery plugins are customizable. Therefore, the user can change them according to his choice.

What is CSS

CSS stands for Cascading Style Sheets. It is easy to learn and can be combined with HTML or XHTML. It is a simple design language that helps to make web pages more presentable.

There are various versions in CSS. CSS1 was introduced in the year 1996. It is a simple visual formatting model for all the HTML tags. CSS 2 contains the additional features of media-specific style sheets such as downloadable fonts, element positioning, and tables. The latest version is CSS3. It has modules with new extensions. Some of them are selectors, box models, backgrounds, borders, and transformations.

Difference Between Bootstrap and CSS

CSS is great to add design to web pages. The user can add colors, change fonts, texts and add tables. Moreover, it is possible to add gradients, shadows, 2D transforms, 3D transforms, border images, multi backgrounds and many more.

Difference Between Bootstrap and CSS


Bootstrap is a free and open source front-end framework for designing websites and web applications. CSS is a style sheet language used for describing the presentation of a document written in a markup language such as HTML.


Bootstrap has Bootstrap 3,4 and CSS has CSS 1, 2,3 versions.


Furthermore, Bootstrap provides a grid system, which creates a page layout through a series of rows and columns that can place the content. There is no Grid system in CSS.

Designed Classes

Also, Bootstrap contains already designed classes. The programmer can use them in his program to add styling to the elements without writing code from the beginning. On the other hand, in CSS, the programmer should write the code from scratch.


Moreover, Bootstrap comes with more features than CSS. It contains templates, JQuery plugins etc.


Considering the usage, the Bootstrap helps to create responsive designs that are more presentable while CSS helps to create presentable webpages.  


Bootstrap and CSS help to build presentable user interfaces. The basic difference between Bootstrap and CSS is that the Bootstrap is a front-end framework while CSS is a style sheet language.  They help to add background and borders, text effects, 2D, 3D animations etc. to web pages.  


1. “What is Bootstrp”, Javapoint.com, Available here.
2. “What is  CSS” Tutorials Point. Www.tutorialspoint.com, Tutorials Point, 12 Aug. 2018, Available here.

Image Courtesy:

1. “Boostrap logo” By Bootstrap – http://blog.getbootstrap.com (Public Domain) via Commons Wikimedia
2. “2189148” (CC0) via Pixabay

About the Author: Lithmee

Lithmee holds a Bachelor of Science degree in Computer Systems Engineering and is reading for her Master’s degree in Computer Science. She is passionate about sharing her knowldge in the areas of programming, data science, and computer systems.

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