What is Bootstrap ?

Twitter’s Bootstrap has rapidly grown into one of the most popular frameworks for web designers and developers. Bootstrap aims to make web development faster and easier, and a growing number of designers and developers are working with Bootstrap.

There are a lot of benefits to using a framework like Bootstrap, most of them focusing on the increased efficiency for building modern and responsive websites. If you’re a Bootstrap user, or if you are interested in giving it a shot, there are several resources that can help with the visual design aspect of working with Bootstrap, and we’ll look at them in this article. There are far more resources that useful for working with Bootstrap in one way or another, but in this collection we are focusing on those resources that help with creating a visual design.

Bootstrap is an open-source Javascript framework developed by the team at Twitter.
It is a combination of HTML, CSS, and Javascript code designed to help build user interface components.
Bootstrap was also programmed to support both HTML5 and CSS3.
Here's a detailed tutorial on Twitter Boostrap: http://webdesign.tutsplus.com/tutorials/complete-websites/twitter-bootstrap-101-the-grid/ I hope this helps!

Bootstrap is a toolkit, a CSS framework, a grid system and even a templating system as far as I know.

Hi Zaid I have used Bootstrap in many projects in my previous jobs.
Bootstrap is intuitive and powerful front-end framework which will help you to speed your development.
Instead of wasting time on the UI, you'll be able to have more time on your backend development.
There are many templates which are built on Twitter Bootstrap (http://twitter.github.com/bootstrap/) .
Check the links below - http://themeforest.net/search?term=twitter&category=site-templates/admin-templates - https://wrapbootstrap.com/ Regards Muteb

Bootstrap is an open-source Javascript framework developed by the team at Twitter.
It is a combination of HTML, CSS, and Javascript code designed to help build user interface components.
Bootstrap was also programmed to support both HTML5 and CSS3.

Yes, like Besim Dauti wat told thats right.
It is an wonderful css framework with some of the javascript components also.
And many guys made more plugins for bootstrap framework like datetime, validator, windows8 theme and more.
U can get those plugin and theme from github.
All are free open source.
You can use it your way.

Bootstrap means to load a small program that eventually calls the desired program into the computer, similar to an operating system being called by a BIOS program.
The word bootstrap also has different meaning in different fields like science, medical, etc.
With regards to computer technology, “bootstrap PHP code” means creating a bootstrapper that handles all the dynamic requests coming to a server and apply the true MVC (Model View Component) framework so that in future you can change the functionality for each unique component or application without changing the entire code or application

boostrap is a css framework made by twitter team.
also it helps you to do your site responsive for all devices.
you can made the webpage fluid with boostrap, i can say for now it's the best css framework, it also have jquery scripts with many plugins that you can use in your web page.

To me I would have 2 answers if someone ever asked me "What is bootstrap" Short Answer: A framework for kick starting development of a web application.
Long Answer: Bootstrap is a framework from Twitter for kick starting development of a web application.
It includes CSS & HTML for typography, forms, buttons tables, girds and more.
It also contains popular JavaScript plugins for modal dialog boxes, tool-tips, carousel, drop downs and much more.
I hope this gives you a little more insight to what is Bootstrap.
Please note this is a addition to @ Faizan Ahmed answer ;)

If your question is about Twiiter Bootstrap, then it's a solid front-end framework for grid-based and responsive web development.

very good CSS framework that allows you to make responsive, pretty, unified webpages simply