Responsive web design is a collection of techniques and ideas based on calculated advantage of all an organizer can afford for all current web site gest them to become sites.)
As devices such as desktops, laptops, all sorts of mobiles phones, tablets, all with different screen sizes and resolutions, become more popular it is just as important to ensure that a website is responsive to the above screen sizes.
Responsive design is about performance optimization — aiming for faster page load times, cutting the fat and using technologies like lazy loading for images and content
Responsive design can make websites more usable, accessible, and thus, more satisfying to users when it translates the same functionality to any device they might be using.