title: Can I use variables for selectors?
body: <p>I have this variable:</p>
  
  <pre><code>$gutter: 10;
  </code></pre>
  
  <p>I want to use it in a selector like so SCSS:</p>
  
  <pre><code>.grid+$gutter {
      background: red;
  }
  </code></pre>
  
  <p>so the output becomes CSS:</p>
  
  <pre><code>.grid10 {
      background: red;
  }
  </code></pre>
  
  <p>But this doesn't work. Is it possible?</p>