Try this, for me it's working on Chrome, Firefox and Safari. You will get header and footer fixed to each page without overlapping the page content
CSS
<style>
@page {
margin: 10mm;
}
body {
font: 9pt sans-serif;
line-height: 1.3;
/* Avoid fixed header and footer to overlap page content */
margin-top: 100px;
margin-bottom: 50px;
}
#header {
position: fixed;
top: 0;
width: 100%;
height: 100px;
/* For testing */
background: yellow;
opacity: 0.5;
}
#footer {
position: fixed;
bottom: 0;
width: 100%;
height: 50px;
font-size: 6pt;
color: #777;
/* For testing */
background: red;
opacity: 0.5;
}
/* Print progressive page numbers */
.page-number:before {
/* counter-increment: page; */
content: "Pagina " counter(page);
}
</style>
HTML
<body>
<header id="header">Header</header>
<footer id="footer">footer</footer>
<div id="content">
Here your long long content...
<p style="page-break-inside: avoid;">This text will not be broken between the pages</p>
</div>
</body>