CSS quick docs unit tests
code review comments
remove description.text
minor change to test names
hide WorkingSetView when empty. clean up extra DOM and style rules.
fix style block test
Merge pull request #3486 from adobe/jasonsanjose/quick-docs-tests

CSS quick docs unit tests
Merge pull request #3539 from adobe/jasonsanjose/issue-3529

hide WorkingSetView when empty. clean up extra DOM and style rules.