diff --git a/elements/core/container.go b/elements/core/container.go
deleted file mode 100644
index 7bdc08f..0000000
--- a/elements/core/container.go
+++ /dev/null
@@ -1,55 +0,0 @@
-package core
-
-import "image"
-import "git.tebibyte.media/sashakoshka/tomo/layouts"
-import "git.tebibyte.media/sashakoshka/tomo/elements"
-
-// ContainerCore is a struct that can be embedded into an object to allow it to
-// have one or more children. It also implements Flexible and Focusable and
-// provides the standard behavior for selecting multiple children, and
-// propagating user input events to them.
-type ContainerCore struct {
-	bounds    image.Rectangle
-	layout    layouts.Layout
-	children  []layouts.LayoutEntry
-	drags     [10]elements.MouseTarget
-	warping   bool
-	focused   bool
-	focusable bool
-	flexible  bool
-}
-
-func NewContainerCore (
-	layout         layouts.Layout,
-	onFocusChange  func (),
-	onLayoutChange func (),
-) (
-	core    *ContainerCore,
-	control ContainerCoreControl,
-) {
-	core = &ContainerCore {
-		layout: layout,
-	}
-	control = ContainerCoreControl {
-		core: core,
-	}
-	return
-}
-
-// TODO fulfill interfaces here. accessors and mutators need to be in the
-// container core control, because elements will have different ways of adopting
-// and disowning child elements.
-
-type ContainerCoreControl struct {
-	core *ContainerCore
-}
-
-// Resize sets the size of the control, and
-func (control ContainerCoreControl) Resize (bounds image.Rectangle) {
-	// TODO do a layout
-	// TODO call onLayoutChange
-}
-
-func (control ContainerCoreControl) Adopt (element elements.Element, expand bool) {
-	
-}