diff -r 4874ab3a7e86 -r ee222d6d87d4 src/main/scala/net/tz/lift/snippet/Panel.scala
--- a/src/main/scala/net/tz/lift/snippet/Panel.scala	Tue Apr 03 11:47:03 2012 +0200
+++ b/src/main/scala/net/tz/lift/snippet/Panel.scala	Tue Apr 03 11:47:03 2012 +0200
@@ -60,7 +60,7 @@
  * A panel using template in <code>/templates-hidden/panel</code> for
  * values rendering.
  */
-class TplPanel(cells: List[(NodeSeq, NodeSeq)]) extends CssTr {
+class TplPanel(cells: Iterable[(NodeSeq, NodeSeq)]) extends CssTr {
   def apply(in: NodeSeq): NodeSeq = Templates(
     List("templates-hidden", "panel")) map { xml =>
     (".row *" #> cells.map { r =>