title: Styling a div with ID inside a div with specific class
body: <p>I have written a CSS file to style a div with ID, inside another div with Classes. It looks like this</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
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  <pre class="snippet-code-css lang-css prettyprint-override"><code>div.class1.class2 &gt; div#ID1{
  Styling Rules
  }</code></pre>
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  </p>
  
  <p>But nothing is happening to DIV with ID1. Would appreciate any help and I can't change the structure of HTML or apply other IDs or classes to the elements.</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;div class="class1 class 2"&gt;
  &lt;div id="ID1"&gt;&lt;/div&gt;
  &lt;/div&gt;</code></pre>
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