<dependency>
  <groupId>org.webjars.npm</groupId>
  <artifactId>postcss-discard-empty</artifactId>
  <version>5.1.1</version>
</dependency>

implementation 'org.webjars.npm:postcss-discard-empty:5.1.1'

implementation("org.webjars.npm:postcss-discard-empty:5.1.1")

libraryDependencies += "org.webjars.npm" % "postcss-discard-empty" % "5.1.1"

@Grapes(
  @Grab(group='org.webjars.npm', module='postcss-discard-empty', version='5.1.1')
)

<dependency org="org.webjars.npm" name="postcss-discard-empty" rev="5.1.1" />

[org.webjars.npm/postcss-discard-empty "5.1.1"]

'org.webjars.npm:postcss-discard-empty:jar:5.1.1'