.NasaBlocksEncyclopedicContentColumnsBlock .content-column .BlockLayout:first-child,.NasaBlocksEncyclopedicContentColumnsBlock .content-column div.margin-y-3:first-child{margin-top:0}.NasaBlocksEncyclopedicContentColumnsBlock .content-column .BlockLayout:last-child,.NasaBlocksEncyclopedicContentColumnsBlock .content-column div.margin-y-3:last-child{margin-bottom:0}