CSSO
CSS minifier with structural optimizations
CSSO (CSS Optimizer) is a CSS minifier. It performs three sorts of transformations: cleaning (removing redundant), compression (replacement for the shorter forms), and restructuring (merge of declarations, rules, and so on). As a result, an output CSS becomes much smaller in size. One of CDN services like unpkg or jsDelivr can be used. By default (for short path) the ESM version is exposed. For IIFE version a full path to a bundle should be specified. CSSO is based on CSSTree to parse CSS...