Why We need for Responsive Web Design :
The use of mobile devices to surf the web is growing day to day, but unfortunately much of the web isn’t optimized for those mobile devices. Mobile devices are often constrained by display size and require a different approach to how content is laid out on screen. When we open one website in Desktop then it has opening it lay out perfectly and when the same website opening in mobile device some content or images are going out of screen, for overcome on this we need Responsive Web Design.

What is Responsive Website Design (RWD)
Responsive Website Design (acronym of RWD) is the process of creating a website template appropriate to work with each browser device along with every screen resolutions, irrespective of how large or small,desktop, laptop, tablets and smartphones that allow for users watching websites on mobile phones to reach them in the user-friendly manner. The process includes a blend of flexible grids & layouts, images & CSS media queries.

Images in responsive web design template are called context-aware. This particular technique serves the purpose of responsive designing in true sense as the images/flash serve at different resolutions, ranging from larger screens to smaller ones. The scaled images appear to change fluidly with the help of updated developer tools and coding languages, allowing designs to look sharp in every context. Responsive web designing is remarkably different from traditional designing in terms of technical and creative issues, and a careful use of this can do wonders while designing.