This template is a base for most of my non-WP web projects. It uses LESS rather than standard CSS, there's a Mac app to compile LESS into real CSS. It also uses Preboot by Mark Dotto

<link rel="stylesheet/less" href="proxy.php?url=https%3A%2F%2Fgithub.com%2Fmain.less">
<script src="proxy.php?url=https%3A%2F%2Fgithub.com%2Fless.js"></script>