title: Is this more than one class?
body: <p>So I've got this code I worked through a tutorial with.</p>
  
  <p>It is: <code>&lt;div&gt;Navbar__Link Navbar__Link-toggle&lt;/div&gt;</code></p>
  
  <p>My question is what the unscores represent? A break into a second classes. 
  It's just a weird naming convention and feels very alien.</p>