fix the error that needs to be fixed. Warning: Consider adding a lang attribute to the html start tag to declare the language of this document.
From line 1, column 16; to line 2, column 6
<!DOCTYPE html>
<html>
<head>
<title>Troublesome HTML</title>
</head>
<body>
<div class="img-div">
<img src="example.gif" width="66" height="111" alt="Example image">
</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>
</ol>
</body>
</html>
<!DOCTYPE html>
<html lang="en">
<head>
<title>Troublesome HTML</title>
</head>
<body>
<div class="img-div">
<img src="example.gif" width="66" height="111" alt="Example image">
</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>
</ol>
</body>
</html>