Add support to define CSS classes for links in topic blocks
Replace legacy typographical rulesets with topic block progress states
Define initial CSS class states for topics
Compile new styles given defined topic progress states
Remove legacy navbar rulesets
Adjust header element dimensions and add comments
Import border radius mixins in external scout
Add styles for code display
Add vertical margins to code blocks
Add rulesets for visibility and media queries
Add rulesets for mobile device overlay and sql table display
Adjust margins on h1, h2