Bootstrap – Introduction

Bootstrap is a front-end framework for designing websites and web applications .By use of HTML, CSS and JavaScript that is notable for developing mobile-first and responsive websites and  With some basic knowledge of HTML and CSS, you can create Bootstrap forms, tables, buttons, typography, navigation, modals, image carousels and optional JavaScript plug-in, by using the premade templates, Unlike many earlier web frameworks, it concerns itself with front-end development only.

Key Features:

Responsive:

They are responsive, which means that are optimized to fit the size of the screen you’re seeing the page on, such as desktops, tablets or cell phones.

Example:

While viewing in desktop or mobile phones, we can propertionally change the size.

Mobile-first:

Bootstrap is mobile-first styles as opposed to desktop-first.It means  instead of using max-width in the media queries- like you would for a site designed for desktop- you use min-width. Generally, coding for mobile-first is simpler than coding for desktop, where global styles are usually designed to make websites look nice on a large screen, a mobile-first approach focuses on sites looking attractive on a small screen.

Browser-friendly:

It is browser-friendly, it will not discriminate, why it is compatible with all current browsers, like Chrome, Internet Explorer, Firefox.

Easy-to-use:

You just need HTML and CSS knowledge to begin using Bootstrap