[jfx11u] RFR: 8266966: Wrong CSS properties are applied to other nodes after fix for JDK-8204568

[Ambarish Rapte]

Fixes a css style regression issue caused by [JDK-8204568](https://bugs.openjdk.java.net/browse/JDK-8204568).

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Commit messages:
 - 8266966: Wrong CSS properties are applied to other nodes after fix for JDK-8204568

Changes: https://git.openjdk.java.net/jfx11u/pull/17/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jfx11u&pr=17&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8266966
  Stats: 132 lines in 3 files changed: 129 ins; 0 del; 3 mod
  Patch: https://git.openjdk.java.net/jfx11u/pull/17.diff
  Fetch: git fetch https://git.openjdk.java.net/jfx11u pull/17/head:pull/17

PR: https://git.openjdk.java.net/jfx11u/pull/17