Hello, Ghost!
<link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.9.0/styles/default.min.css">
<script src="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.9.0/highlight.min.js"></script>
<script>hljs.initHighlightingOnLoad();</script>
<style>
pre {
hyphens: none;
line-height: 1.3em;
}
pre code, pre tt {
white-space: pre;
}
</style>
できた。