Header in PDF page using DOMPDF in PHP
<!-- See PDF debugger: https://eclecticgeek.com/dompdf/debug.php?identifier=b7d40757e13c269fc088be303b5ff099 -->
<html>
<head>
<style>
@page { margin: 180px 50px; }
#header { position: fixed; left: 0px; top: -180px; right: 0px; height: 150px; background-color: orange; text-align: center; }
#footer { position: fixed; left: 0px; bottom: -180px; right: 0px; height: 150px; background-color: lightblue; }
#footer .page:after { content: counter(page, upper-roman); }
</style>
<body>
<div id="header">
<h1>Widgets Express</h1>
</div>
<div id="footer">
<p class="page">Page </p>
</div>
<div id="content">
<p>the first page</p>
<p style="page-break-before: always;">the second page</p>
</div>
</body>
</html>