So you have to build many websites using react and there is something which is there in css that we use which helps in building a responsive website and we can use things like size models like rem which basically are kind of universal you can use that for any particular device so if you are using rem then it will just be the same in every particular device if it's a mobile or a tablet or a laptop so something like rem or you know benefits of using css there are like particular structures where we can define that this is the screen size that you have that if it exceeds then you should keep this particular size or if it doesn't exceed this screen size or width or height then you should keep this particular height so this particular thing basically helps in making a responsive website be it your mobile phone or your laptop the side would not be faulty in appearance you would be able to see a visually appealing website so i use these methods otherwise in today's technology we have things like tailwind css which also is very useful when building a responsive website
