ref: 98ee69bce207a4c2a7c2ffca2b3e7c0ccdd6e8c9
dir: /examples/blog/layouts/partials/header.includes.html/
<link href="/css/bootstrap.css" rel="stylesheet">
<link href="/css/font-awesome.css" rel="stylesheet">
<link href="/css/custom.css" rel="stylesheet">