Place the following code snippet where you'd like the header to be on the page.
<script src="http://projects.jsonline.com/shared/header/v4/header.js"></script>
^ This assumes that the Unify fonts are already loaded on the page and that you have a mobile friendly viewport set. If not, see the readme.html file.
<iframe src="http://projects.jsonline.com/shared/header/v4/embed.html" style="width:100%;height:40px;" frameborder="0"></iframe>