More About It
So what is it?
RWD is short for Responsive Web Design. It is an integral part of modern webpages because it is the reason that websites display correctly on your device. That is, it dynamically resizes them to fit the screen of any device. This makes it far more convenient for the user and will also help with you trying to code, because it would be harder to code on a wrongly sized application. This allows for you to fully focus on coding and ignore the inconvenience of scrolling through the application to continue coding.