Examples
Default styling

Highlight class - Adds border around text (used for the years on Timeline page).

.highlight--red
Red highlight

Highlight class - Adds border around text (used for the years on Timeline page).

.highlight--purple
Purple highlight

Highlight class - Adds border around text (used for the years on Timeline page).

.highlight--royal-blue
Royal-blue highlight

Highlight class - Adds border around text (used for the years on Timeline page).

.highlight--mint-green
Mint-green highlight

Highlight class - Adds border around text (used for the years on Timeline page).

.highlight--white
Mint-green highlight

Highlight class - Adds border around text (used for the years on Timeline page).

Markup: components/highlight/highlight.twig
<p><span class="highlight {{modifier_class}}">Highlight class</span> - Adds border around text (used for the years on Timeline page).</p>
Source: _cr17-styleguide.scss, line 90