Responsive site is a site with flexible design and web layout that automatically adapts to any screens of various devices.
Responsiveness allows to save the site unified and eliminates the necessity to create separate mobile versions. As a rule development of a responsive site is the rightest way for correct display and work of a site on all types of devices.
Responsiveness of a site is reached with the help of flexible technologies: step-by-step projecting, dynamic web layout, Media Queries, adaptable images.
The process of responsive site development itself is more complex in projecting, comparing to development of an ordinary website or mobile version of a site - one must consider step-by-step change of the structure and arrangement of elements with screen’s resolution change, think out their behaviour and interaction. Only a wireframe of a single site’s page can have from 3 to 6 variants of different arrangement.