     private lazy var menuButtonsContainer: WWDCBottomBorderView = {
         let v = WWDCBottomBorderView()
         
+        v.isHidden = true
         v.wantsLayer = true
         
         v.heightAnchor.constraint(equalToConstant: 50).isActive = true

        b.state = NSOffState
        b.target = self
        b.action = #selector(tabButtonAction(_:))
        
        return b
    }()

        b.state = NSOffState
        b.target = self
        b.action = #selector(tabButtonAction(_:))
        b.isHidden = true
        
        return b
    }()
