Use gulp-uncss to clear unnecessary useless css and gulp-uncss to useless css

Use gulp-uncss to clear unnecessary useless css and gulp-uncss to useless css

 

Cnpm can also use npm

Cnpm install gulp-uncss -- save-dev

 

Gulpfile. js

Var gulp = require ('gulp'), uncss = require ('Gulp-uncss '); gulp. task ('uncss ', function () {gulp. src ('src/css/origin.css ') // redundant css file. pipe (uncss ({html: ['src/origin.html '] // you can use multiple html pages for css })). pipe (gulp. dest ('build/css/uncss '); // output directory });

 

It's easy to remove unnecessary css, and you don't need to use css usage manually.