Backport had a minor merge conflict of copyright year in the file `Labeled.java`. Rest of the changes are clean backport
------------- Commit messages: - 8204568: Relative CSS-Attributes don't work all time Changes: https://git.openjdk.java.net/jfx11u/pull/6/files Webrev: https://webrevs.openjdk.java.net/?repo=jfx11u&pr=6&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8204568 Stats: 700 lines in 5 files changed: 696 ins; 0 del; 4 mod Patch: https://git.openjdk.java.net/jfx11u/pull/6.diff Fetch: git fetch https://git.openjdk.java.net/jfx11u pull/6/head:pull/6 PR: https://git.openjdk.java.net/jfx11u/pull/6
