Web Development is the brain behind a good web design and a well functioning web application, it is the foundation which makes a beautiful design functions smoothly and correctly without any problems. Backend development and frontend development plays a big part on the functionality of a website. There is no good website design without the backing of a good and smooth functionality, the development part is what helps in improving user satisfaction.
User interface design is the look and feel of a website and user experience design is the process or the idea of creating a user friendly experience on a site, web app or mobile app. Both together is the act of creating a beautiful and Intuitive design which create users satisfaction. The information and all elements has to be laid in such good manner so that the users can find it easy to browse and navigate without problems. Getting UI and UX right is critical for having a successful website.
A responsive experience that adapt to the device screen to give the user the best viewing experience as possible, through the use of CSS along with JavaScript. Specific request is sent from the device browser to the server, then the server will then return the appropriate version of the site, based on device resolution. This is a better solution that solve the difficulties of having to design different versions of the same website for different devices.