<link
  id="hljs-light-theme"
  rel="stylesheet"
  href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/11.7.0/styles/base16/solarized-light.min.css"
/>
<link
  id="hljs-dark-theme"
  rel="stylesheet"
  href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/11.7.0/styles/base16/dracula.min.css"
/>
<link
  rel="stylesheet"
  href="//unpkg.com/highlightjs-copy/dist/highlightjs-copy.min.css"
/>