Inside Visceral Dance Center’s old brick warehouse on Elston Avenue, dancers prowl, leap, and pirouette their way to fitter frames and flawless technique. Founder and artistic director Nick Pupillo and his agile instructors lead students through steps in myriad dance styles⎯including ballet, contemporary jazz, hip-hop, modern, and movement and improvisation⎯teaching them to dance solo or perfect a waltz with their shadows. Each Visceral Dance Center instructor specializes in one or two methods of dance, and they impart their expertise to students ranging in age from 2.5 years to adulthood during weekly classes. The space also hosts performances by the training center’s progressive-house company, Visceral Dance Chicago, and the Visceral Studio Company, a group of 15 youth dancers from the greater Chicago area.