big and mini pipeline css changes

What does this MR do?

beauty fixes

Are there points in the code the reviewer needs to double check?

Why was this MR needed?

aesthetics

  • now properly does the hover's within dropdowns

scaled icons slightly here and there

Screenshots (if relevant)

2016-12-21_14.03.07

Does this MR meet the acceptance criteria?

What are the relevant issue numbers?

Merge request reports

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