Fixes #6256.  Add IE specific CSS rule to demo to fix slider label z-index.
Fixes #6256.  Add IE specific CSS rule to demo to fix slider label z-index.

git-svn-id: 674a2d6b1e32e53f607eb824547723f32280967e@13147 560b804f-0ae3-0310-86f3-f6aa0a117693

redaktor/deliteful