When it comes to baby fashion, the words “gender neutral” are code for “subtle pea green” (nothing to envy about that).Make the case for simple white instead. To wit: Oeuf’s new baby layette.The modern kiddie brand — known for clean lines and eco-conscious design — delivers a selection of baby basics that lives up to its reputation. The entire collection — from beanies to blankets — is made from certified organic Peruvian cotton and crafted under fair trade conditions.Items come in sizes 3 to 24 months and include kimono-style onesies and tees, jumpers with and without feet, long- and short-sleeve tees, pants, and ruffled diaper covers. No need to fear baby blowouts; nothing takes a splash of bleach quite like an all-white wardrobe.Perfect for your blank canvas.Available online at oeufnyc.com, $12-$56.Photo: Courtesy of Oeuf GALLOPOdysseoWhat: Aerialists, acrobats, and dozens of horses perform under the sprawling, 5-D big top.Why: Think Cirque du Soleil with an equestrian slant (Mr. Ed, please step aside).When: Wed.-Mar. 25.Where: Bicentennial Park, 1075 Biscayne Blvd. Tickets at 866-999-8111 or online at cavalia.net. Adults, $49.50-$219.50; teens, $34.50-$139.50; children, $29.50-$129.50; under 2, free.CLIMB ABOARDDay out with Thomas: Mystery on the Rails Tour 2012What: Take a spin on the train, make crafts, and hang with Sir Topham Hatt.Why: Catch him before he chugs off to another station.When: Thru Mar. 11. Sat. & Sun., 9 a.m.-5:15 p.m.Where: Gold Coast Railroad Museum, 12450 SW 152nd St. (305-253-0063). Tickets at 866-468-7630 or online at ticketweb.com. Adults and children, $18; under 2, free.LILTThe Magic of OperaWhat: Singers from the Florida Grand Opera’s Young Artist Studio impress audiences with their arias.Why: And you thought your mini Madame Butterfly had a set of pipes.When: Sun., 3 p.m.Where: Maurice Gusman Concert Hall, University of Miami, 1314 Miller Dr., Coral Gables. Tickets at 305-271-7150 or online at sundaymusicals.org. Adults, $12; children 2 and up, $10; lap seats for babies, free.