<dependency>
  <groupId>org.zkoss.zk</groupId>
  <artifactId>zhtml</artifactId>
  <version>6.5.1</version>
</dependency>

implementation 'org.zkoss.zk:zhtml:6.5.1'

implementation("org.zkoss.zk:zhtml:6.5.1")

libraryDependencies += "org.zkoss.zk" % "zhtml" % "6.5.1"

@Grapes(
  @Grab(group='org.zkoss.zk', module='zhtml', version='6.5.1')
)

<dependency org="org.zkoss.zk" name="zhtml" rev="6.5.1" />

[org.zkoss.zk/zhtml "6.5.1"]

'org.zkoss.zk:zhtml:jar:6.5.1'