title: How to change color when hover over div id?
body: <p>I have made a div id in my html and draw the bars in my css.
  Now i want to change the colors when hover over the bars.</p>
  
  <p>here is a example of my html</p>
  
  <pre><code>&lt;div id="balklongwaarde"&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>And here is my css where I draw the divs</p>
  
  <pre><code>#balklongwaarde{
  height: 150px;
  width: 40px;
  border: 1px solid #2e9afe;
  background: #2e9afe;
  position: absolute;
  margin-top: 200px;
  margin-left: 200px;
  }
  </code></pre>
  
  <p>How to change the background color when hover over the bars?</p>