What is responsive design?

Responsive Design | https://www.wikipedia.org/

The design responsive is focused towards an improved interface for web browsing on mobile devices. The main objective of this type of design, is to improve the appearance of the websites with respect to the type of device with which the user is accessing.

This design uses code HTML5, CSS3 and Media Queries.

The code HTML5 is a new it's the fifth version of the language basic of World Wide Web, this version was released in October 2014.

In this code new tags are added highlighting among them:

<header>  </header>

<nav>  </nav>

<footer>   </footer>

<section>  </section>

<video>  </video>

Media Queries belongs to CSS3 and defines in different ways the design of a responsive site,

With the use of Media Queries a website can adapt to different types of devices such as screens mobile devices.

They are conditions used in CSS3 that modify the design of the website using different types of criteria. Example:

@media screen and (min-width:560px) { ... }

The use of these two languages has increased considerably in recent years, and are now being used by recognized websites.

And you do you think?