Uses logical properties for fields.css file #556

Job	Run time
tests / Install LocalGov Drupal (3.x, ~10.0, 8.1)	2m 57s
tests / Install LocalGov Drupal (3.x, ~10.0, 8.1)	2m 57s
tests / Install LocalGov Drupal (3.x, ~10.0, 8.2)	2m 17s
tests / Install LocalGov Drupal (3.x, ~10.0, 8.2)	2m 17s
tests / Install LocalGov Drupal (3.x, ~10.0, 8.3)	2m 33s
tests / Install LocalGov Drupal (3.x, ~10.0, 8.3)	2m 33s
tests / Coding standards checks (3.x, ~10.0, 8.3)	16s
tests / Coding standards checks (3.x, ~10.0, 8.3)	16s
tests / Static analysis checks (3.x, ~10.0, 8.3)	17s
tests / Static analysis checks (3.x, ~10.0, 8.3)	17s
tests / PHPUnit tests (3.x, ~10.0, 8.1)	1m 54s
tests / PHPUnit tests (3.x, ~10.0, 8.1)	1m 54s
tests / PHPUnit tests (3.x, ~10.0, 8.2)	24s
tests / PHPUnit tests (3.x, ~10.0, 8.2)	1m 51s
tests / PHPUnit tests (3.x, ~10.0, 8.3)	1m 51s
tests / PHPUnit tests (3.x, ~10.0, 8.3)	1m 51s
	26m 25s

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