rename CSS classes and add more CSS variables (!83) · Merge requests · Antora / Antora Default UI · GitLab

Dan Allen requested to merge opendevise/oss/antora-ui-default:rename-css-classes into master Jun 27, 2019

rename CSS classes to make them more concise and consistent
extract CSS variables into dedicated file
pull more widths and heights into CSS variables
rename crumbs to breadcrumbs
consolidate styles for site navigation into single CSS file