work on some css-4 features #134

Job	Run time
Look for todos	3s
Build the Haddock documentation	9m 32s
Check for hlint suggestions	8s
Build the Haskell software (lts-10)	6m 2s
Run the tests (lts-10)	7m 37s
Build the Haskell software (lts-11)	6m 3s
Deploy documentation to GitHub pages	0s
Run the tests (lts-11)	7m 33s
Build the Haskell software (lts-12)	5m 44s
Run the tests (lts-12)	7m 39s
Build the Haskell software (lts-13)	6m 1s
Run the tests (lts-13)	7m 38s
Build the Haskell software (lts-14)	6m 1s
Run the tests (lts-14)	7m 35s
Build the Haskell software (lts-15)	6m 2s
Run the tests (lts-15)	7m 34s
Build the Haskell software (lts-16)	6m 1s
Run the tests (lts-16)	7m 29s
Build the Haskell software (lts-17)	6m 1s
Run the tests (lts-18)	1m 43s
Build the Haskell software (lts-18)	5m 59s
Run the tests (lts-19)	1m 44s
Build the Haskell software (lts-19)	5m 58s
Run the tests (lts-20)	1m 43s
Build the Haskell software (lts-20)	5m 59s
Run the tests (lts-21)	1m 43s
Build the Haskell software (lts-21)	6m 0s
Deploy package on hackage	0s
	2h 21m 32s

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