title: How is web page changing within the same website done?
body: <p>For example, let's say we're at the homepage at www.fakewebsite.com and, when we look at the footer at the bottom of the page, we can see that there is an "About" button that you can click on--which you do so you get to know more about the company. The website refreshes and enters into www.fakewebsite.com/about. My question is this: How is this done? I'm pretty new to the web developing world and would like to know what is done to make this possible (So, I can do it too).</p>