                        completion: completion)
     }
     
-    public func drop(duration: TimeInterval = 0.5, completion: CS_ClosureWithBool? = nil) {
+    public func dropAnimation(duration: TimeInterval = 0.5, completion: CS_ClosureWithBool? = nil) {
         let offsetY = base.cs.bottom
         base.transform = CGAffineTransform(translationX: 0, y: -offsetY)
         UIView.animate(withDuration: duration,

                       },
                       completion: completion)
    }
}

// MARK: - reuse

                       completion: completion)
    }
    
    public func raiseAnimation(duration: TimeInterval = 0.5, completion: CS_ClosureWithBool? = nil) {
        let offsetY = CS_ScreenHeight - base.cs.top
        base.transform = CGAffineTransform(translationX: 0, y: offsetY)
        UIView.animate(withDuration: duration,
