title: what is the status of css nesting modules?
body: <p>In LESS/SASS you can nest css modules like this:</p>
  
  <pre><code>.sidebar {
     .title {..}
  }
  </code></pre>
  
  <p><a href="https://tabatkins.github.io/specs/css-nesting/" rel="nofollow noreferrer">https://tabatkins.github.io/specs/css-nesting/</a></p>
  
  <p>this says it was in draft for CSS3. So where is it?</p>