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The Strange Case of Dr. Jeykll and Mr. Hyde tells the story of a lawyer investigating the connection of two persons, Dr. Henry Jekyll and Mr. Edward Hyde. Chief among the novel's supporting cast is a man by the name of Mr. Poole, Dr. Jekyll's loyal butler.

Poole is the butler for Jekyll, the static site generator. It's designed and developed by @mdo to provide a clear and concise foundational setup for any Jekyll site. It does so by furnishing a full vanilla Jekyll install with example templates, pages, posts, and styles.


See Poole in action with the demo site.

There are currently two official themes built on Poole:

Individual theme feedback and bug reports should be submitted to the theme's individual repository.



1. Install Jekyll

Poole is built for use with Jekyll, so naturally you'll need to install that. On Macs, it's rather straightforward:

$ gem install jekyll

Windows users: Windows users have a bit more work to do, but luckily @juthilo has your back with his Run Jekyll on Windows guide.

You may also need to install Pygments, the Python syntax highlighter for code snippets that plays nicely with Jekyll. Read more about this in the Jekyll docs.

2a. Quick start

To help anyone with any level of familiarity with Jekyll quickly get started, Poole includes everything you need for a basic Jekyll site. To that end, just download Poole and start up Jekyll.

2b. Roll your own Jekyll site

Folks wishing to use Jekyll's templates and styles can do so with a little bit of manual labor. Download Poole and then copy what you need (likely _layouts/, *.html files, atom.xml for RSS, and public/ for CSS, JS, etc.).

3. Running locally

To see your Jekyll site with Poole applied, start a Jekyll server. In Terminal, from /Poole (or whatever your Jekyll site's root directory is named):

$ jekyll serve

Open http://localhost:4000 in your browser, and voilà. You're done.


Poole includes some customizable options, typically applied via classes on the <body> element.

Rems, font-size, and scaling

Poole is built almost entirely with rems (instead of pixels). rems are like ems, but instead of building on the immediate parent's font-size, they build on the root element, <html>.

By default, we use the following:

html {
  font-size: 16px;
  line-height: 1.5;
@media (min-width: 38em) {
  html {
    font-size: 20px;

To easily scale your site's typography and components, simply customize the base font-sizes here.


Poole has two branches, but only one is used for active development.

  • master for development. All pull requests should be to submitted against master.
  • gh-pages for our hosted site, which includes our analytics tracking code. Please avoid using this branch.


Mark Otto


Open sourced under the MIT license.