What are some potential pitfalls when using CSS to style elements in a PDF generated from PHP?

One potential pitfall when using CSS to style elements in a PDF generated from PHP is that not all CSS properties are supported by PDF rendering engines. To avoid this issue, stick to basic CSS properties that are widely supported in PDF generation libraries. 

// Example code snippet using basic CSS properties to style elements in a PDF generated from PHP

// Set up PDF generation
$pdf = new FPDF();
$pdf->AddPage();

// Add styled text to PDF
$pdf->SetFont('Arial', 'B', 16);
$pdf->Cell(40, 10, 'Hello World', 0, 1, 'C');

// Output PDF
$pdf->Output();

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