Control: reassign -1 node-cssstyle node-jsdom debian/control has a node-cssstyle dependency. However a simple test shows that cssstyle is unusable:
$ node -e 'require("cssstyle")' internal/modules/cjs/loader.js:583 throw err; ^ Error: Cannot find module 'cssom' at Function.Module._resolveFilename (internal/modules/cjs/loader.js:581:15) at Function.Module._load (internal/modules/cjs/loader.js:507:25) at Module.require (internal/modules/cjs/loader.js:637:17) at require (internal/modules/cjs/helpers.js:22:18) at Object.<anonymous> (/usr/lib/nodejs/cssstyle/lib/CSSStyleDeclaration.js:6:13) at Module._compile (internal/modules/cjs/loader.js:689:30) at Object.Module._extensions..js (internal/modules/cjs/loader.js:700:10) at Module.load (internal/modules/cjs/loader.js:599:32) at tryModuleLoad (internal/modules/cjs/loader.js:538:12) at Function.Module._load (internal/modules/cjs/loader.js:530:3)