title: How to hide all element on html page except one div using css?
body: <p>I was trying to hide all on an html expect for one <code>&lt;div&gt;</code>, as part of a bigger problem.
  I have tried...</p>
  
  <pre><code>body * {
    display: none;
  }
  #someTable, #someTable * {
    display: block !important;
  }
  </code></pre>
  
  <p>But It doesn't work. What am i doing wrong?</p>