title: How can a browser know the scss files?
body: <p>I see this <a href="https://freehtml5.co/preview/?item=learn-free-website-template-using-bootstrap-for-school-courses-websites" rel="noreferrer">html template</a>, and inspect it using Chrome inspection tool.<br>
  I'm surprised to know that my browser can detect the scss files instead of the compiled css one.
  Then, I push Ctrl+U to view the page source, try to find 'scss' but it gives nothing in result.<br>
  So, how does the browser know the scss files?</p>
  
  <p>P.S. I'm new to scss/sass/css pre-processor things</p>