check out this HTML. See if you can count how many errors there are. Some might not be too hard to spot.

<html>
<head>
<title>Troublesome HTML</title>
</head>

<body>
<div class="img-div">
<img src="example.gif" width="66" height="111">
</div>
<h1>HTML? Or HTM Oh-Well?!</h1>
<p>Here's some HTML that isn't quite up to snuff.
</p>
<ol>
<li>Can you spot the bad markup? <strong>
It can be tough to spot!</strong>
</li>
<li>But it's there ...
</li>
<li>Hiding.</li>
<li>Waiting to mess something up.</li>
</ul>
</body>
</html>

Here are the errors I found in the provided HTML:

1. The closing `</ul>` tag is used instead of the correct closing `</ol>` tag for the ordered list.

That's the only error I found in the provided HTML.