title: how to use :has in sass
body: <p>I need to add some styles if body has some element with .rtl class. 
  How is possible to do it ?</p>
  
  <pre class="lang-css prettyprint-override"><code>body:has(.app.rtl) {
     .blah {
         some: blah;
     }
  }
  </code></pre>
  
  <p>This is something that I need</p>