css-minify

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Install:

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yarn global add css-minify

or

npm install css-minify -g

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yarn add css-minify

or

npm install css-minify

Usage:

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If you want to deal with a single css file,you can do it like this:

css-minify -f filename

or

css-minify --file filename

If no file / dir are specified, check if STDIN has data, and if so, run the minifier and print on STDOUT

``
> echo "body { color: #ff0000; }" | node bin/css-minify.js
body{color:red}
`

Warning:

Be sure that filename must be ended with ".css"

However,if you have too many css files to deal with,you can do it like this:

css-minify -d sourcedir

or

css-minify --dir sourcedir

And then, if you want to specify output directory, use -o or output like below(introduced in 1.1.0):

css-minify -d sourcedir -o distdir

or

css-minify --dir sourcedir --output distdir

Tips:

All css source files are in the sourcedir directory

At last, you will see the minified css file, which is ended with .min.css in directory specified by -o or --output, which is css-dist` by default.