diff -r f93465523457 -r c0cf0150cb4c build.sc
--- a/build.sc	Sat Dec 26 19:56:35 2020 +0100
+++ b/build.sc	Sat Dec 26 20:04:48 2020 +0100
@@ -1,3 +1,13 @@
+/*
+ * REPL:
+ *
+ * ./mill --repl -w
+ *
+ * Generate Idea project:
+ *
+ * ./mill mill.scalalib.GenIdea/idea
+ *
+ */
 import mill._
 import mill.api.Loose
 import mill.define.{Command, Input, Sources, Target}
@@ -7,9 +17,9 @@
 
 object V {
   val app = "0.3-SNAPSHOT"
-  val scalaJs = "0.6.28"
+  val scalaJs = "0.6.33"
   val scala211 = "2.11.12"
-  val scala212 = "2.12.9"
+  val scala212 = "2.12.12"
 }
 
 object D {
@@ -18,7 +28,7 @@
 
 trait Common extends CrossSbtModule with PublishModule {
 
-  def pomSettings = PomSettings(
+  def pomSettings: T[PomSettings] = PomSettings(
     description = "Scalatags DSL for purecss.io framework",
     organization = "cz.functionals",
     url = "https://hg.functionals.cz/purecss",
@@ -44,7 +54,7 @@
     "-unchecked",                        // Enable additional warnings where generated code depends on assumptions.
     "-Xcheckinit",                       // Wrap field accessors to throw an exception on uninitialized access.
     "-Xfuture",                          // Turn on future language features.
-    "-target:jvm-1.8",
+    "-target:jvm-1.8"
   )}
 
   def hgId: Input[String] = T.input {
@@ -82,6 +92,14 @@
 object jvm extends Cross[JvmModule](V.scala211, V.scala212)
 object js extends Cross[JsModule](V.scala211, V.scala212)
 
+def compileAll(): Command[Unit] = T.command{
+  jvm(V.scala212).compile()
+  js(V.scala212).compile()
+  jvm(V.scala211).compile()
+  js(V.scala211).compile()
+  ()
+}
+
 def publishLocal(): Command[Unit] = T.command{
   jvm(V.scala212).publishLocal()()
   js(V.scala212).publishLocal()()