Deeper Nesting

Out of the box Slate only supports one level of nesting in the table of contents. However it's possible to get a deeper nesting as the plugin tocify supports that. Once you've installed slate open the following file source/javascripts/app/toc.js

In the function makeToc you can add more selectors. So if you want two levels of nesting the section with selectors should look like this: selectors: 'h1, h2, h3'. Now you have two levels on nesting!

But you probably want to style the levels of nesting differently. You can add a different styling in the file source/stylesheets/screen.css.scss The styling is located on line 192 at the time of writing. For every level of nesting that you have, you need to add another .tocify-subheader to get to the appropriate styling.

.tocify-subheader {
  .tocify-subheader {
    .tocify-item>a {
      // Styling here for a level 2 nesting. 
    }
  }
}