2 Married people living in the same household that are separated and one parent wanting to take the children out of state

Question

Myself and my husband reside in the same home currently however I am fairly certain we will be getting a divorce soon. I suspect he plans to move from here in Florida to Las Vegas and take our 4 children with him. Is this allowed and if it is how can I prevent him from taking our kids out of state?

Answer

 By you filing for divorce he cannot move the kids from Florida without court permission.