Options

banner

Type: String Default: null

Prefix the compressed source with the given banner, with a linebreak inbetween.

keepSpecialComments

Type: String Number Default: '*'

To keep or remove special comments, exposing the underlying option from clean-css.. '*' for keeping all (default), 1 for keeping first one, 0 for removing all.

report

Choices: false, 'min', 'gzip' Default: false

Either do not report anything, report only minification result, or report minification and gzip results. This is useful to see exactly how well clean-css is performing but using 'gzip' will make the task take 5-10x longer to complete.

Example ouput using 'gzip':

Original: 198444 bytes.
Minified: 101615 bytes.
Gzipped:  20084 bytes.