title: Universal selector, how to exclude some elements
body: <p>After building a blog last part is to make a universal selector that when hover over it will highlight the elements yellow. however we need to exclude elements like body and html from that behavior. 
  i starter with this</p>
  
  <pre><code>*:hover { background-color:yellow } 
  </code></pre>
  
  <p>How can I exclude elements from universal selector?</p>