What does Bootstrap do in creating a web page?

Question

I'm beginner . Without bootstrap , using HTML and CSS JS can make a web page?.
What does this web page make change when using bootstrap?

Answer 1

Bootstrap is a free open source, and is the most popular html, css and javascript framework developed by mark otto and jacob thornton for creating responsive web applications and websites.bootstrap extends the functinality of html, css and javascript.
bootstrap contain html and css based design templates for text, forms, buttons, navigation and other components.

Bootstrap advantages
-->supports responsive design.
-->consistency
-->customizable
-->can be usable with any technology such as html,css,ASP.NET etc...

Answer 2

Bootstrap is just a framework that gives you a series of predefined styles for you to use on your page. With this you achieve that the development is more agile, since you do not have to do everything, besides that it facilitates you that your design adapts in any device

Answer 3

sure you can make a web page with only html css and js. think of bootstrap as a huge css file which is already written for you so that you can make responsive websites easily. you don't need to re-invent the wheel, right?