How can the encoding in the document be checked and corrected to resolve the problem with displaying umlauts?
The issue with displaying umlauts is likely due to incorrect encoding in the document. To resolve this, you can check the encoding of the document and ensure it is set to UTF-8. This can be done by adding a meta tag specifying the charset in the HTML document.
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
</head>
<body>
<!-- Your content here -->
</body>
</html>