ref: 39b2cdece0b4be6a0d48c6b1c6a6b0c220c9bb29
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">