Bootstrap is a framework to help you design websites faster and easier. It includes HTML and CSS based design templates for typography, forms, buttons, tables, navigation, modals, image carousels, etc. It also gives you support for JavaScript plugins.

Responsive design is a front-end development process intended for molding website design and user experience to the user’s device, whether desktop, tablet, or mobile.   In responsive, a cascading style sheet (CSS)—essentially what defines the format and layout of a web page, is leveraged to permit a website to scale to the width of a browser, independent of device type. Javascript and js libraries such as JQuery and Modernizr are also used to accompany this behavior for resizing more dynamic objects like masonry galleries as well as converting mouse activities to touch activities.   Unlike adaptive design or mobile detection,

World Wide Web Consortium (W3C) allows internet users to check HTML and XHTML documents for well-formatted markup. Markup validation is an important step towards ensuring the technical quality of web pages.   Why Validate a Site on W3C? W3C validation is the process of checking a websites code to determine if it follows the formatting standards. If you fail to validate the pages of your website based on W3C standards, your website will most likely suffer from errors or poor traffic owing to poor formatting and readability.   1. Help Improve Rankings in Search Engines. W3C validation helps you to get better rankings