Responsive websites use W3C CSS3 media queries. It also uses fluid grids and fluid images this helps in adapting the layout to the viewing environment. The basic idea of responsive web design is to make websites that fit multiple screen sizes.
Fluid grids, flexible images, and media queries are technical ingredients for responsive web design, but it depends on logic and thinking.
Many customers use their mobile devices to visit your website. They open your website on mobile phones many times in order to direct access.
The new trend is responsive website design as the number of mobile users is explosive.
So if you want to connect millions of users on each day the solution is a responsive website.It can be opened easily on different media devices.