diff --git a/.gitignore b/.gitignore
index bee8a64..083d732 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 __pycache__
+.idea
diff --git a/dariuino-ide.py b/dariuino-ide.py
index 73a5f36..f8aa5a1 100755
--- a/dariuino-ide.py
+++ b/dariuino-ide.py
@@ -21,19 +21,33 @@ class Statement:
 
 
 def main():
+	ui = gui.UI('Dariuino IDE', gui.Dimensions(1920, 1080))
+
 	resources = gui.ResourceContainer.from_json_file('res/resources.json')
 
 	container = gui.Container(gui.Position(0, 0), gui.Dimensions(600, 600))
 
 	c = gui.Dragable(resources.get_image('icon-for-32'), gui.Position(100, 300))
-	c.on_click = lambda : print('Hello world')
+	c.on_click = lambda: print('Hello world')
 
 	a = gui.Dragable(resources.get_image('icon-while-32'), gui.Position(150, 350))
+	a.on_drag = lambda: a.set_transparency(0.5)
+	a.on_drop = lambda dropable: a.set_transparency(0.0)
+	a.on_fail = lambda drag : a.set_transparency(0.0)
 
+	d = gui.Dropable(gui.Position(0, 0), gui.Dimensions(50, 100))
+	d.background_color = gui.Color(255, 0, 0)
+	d.on_drop = lambda dragable: print(dragable)
+
+	container.add_dropable(d)
 	container.add_clickable(c)
 	container.add_clickable(a)
 
-	ui = gui.UI('Dariuino IDE', gui.Dimensions(1920, 1080))
+	block = CodeBlock(BlockColor.VIOLET, resources.get_image('icon-for-32'))
+	block.add_text('Hallo liebe rosa Welt mit Regenbögen und Einhörnern.')
+
+	container.add_clickable(block)
+
 	ui.add_container(container)
 	ui.init()
 	ui.update()
diff --git a/src/dariuino.py b/src/dariuino.py
index 526793c..fbe11bd 100644
--- a/src/dariuino.py
+++ b/src/dariuino.py
@@ -1,3 +1,5 @@
+import pygame.draw
+
 import src.gui as gui
 
 
@@ -9,8 +11,71 @@ class BlockColor:
 	YELLOW = gui.Color(255, 255, 0)
 
 
-class CodeBlock(gui.Clickable):
-	def __init__(self, color: gui.Color, on_click_callback: callable):
-		Clickable.__init__(self, gui.Canvas(500, 200), gui.Position(0, 0))
-		self.on_click = on_click_callable
+class CodeBlock(gui.ListItem):
+	TEXT_SIZE = 24
+	TEXT_COLOR = gui.Color(255, 255, 255)
+	TEXT_FONT = 'freesansbold.ttf'
+	RADIUS_CORNERS = 30
+	PADDING = 20
+	SPACE = 10
 
+	def __init__(self, color: gui.Color, icon: gui.Image):
+		gui.ListItem.__init__(self, gui.Canvas(gui.Dimensions(500, 100)))
+		self.icon = icon
+		self.color = color
+		self.content = []
+
+	def add_text(self, text: str) -> None:
+		for word in text.split(' '):
+			self.add_visualization(
+				gui.Text(word, size = self.TEXT_SIZE, font_family = self.TEXT_FONT, color = self.TEXT_COLOR)
+			)
+
+	def add_visualization(self, visualization: gui.Visualization) -> None:
+		self.content.append(visualization)
+
+	def draw(self, canvas: gui.Canvas) -> None:
+		self.canvas.clear()
+
+		self._render_background()
+
+		self.canvas.draw_inside(self.icon, gui.Position(self.PADDING, self.PADDING))
+
+		line_dimensions = gui.Dimensions(self.icon.get_dimensions().width, self.PADDING)
+		line_dimensions.width += self.PADDING
+
+		max_height = self.icon.get_dimensions().height
+
+		for drawable in self.content:
+			line_dimensions.width += self.SPACE
+			max_height = max(max_height, drawable.get_dimensions().height)
+
+			if line_dimensions.width + drawable.get_dimensions().width > self.canvas.get_dimensions().width:
+				line_dimensions.width = self.PADDING + self.icon.get_dimensions().width + self.SPACE
+				line_dimensions.height += max_height
+				max_height = drawable.get_dimensions().height
+
+			self.canvas.draw_inside(drawable, gui.Position(line_dimensions.width, line_dimensions.height))
+
+			line_dimensions.width += drawable.get_dimensions().width
+
+		gui.Visualization.draw(self, canvas)
+
+	def _render_background(self):
+		self.canvas.clear(None)
+
+		pygame.draw.rect(
+			self.canvas.surface,
+			self.color.as_tuple(),
+			(0, 0, self.canvas.get_dimensions().width, self.canvas.get_dimensions().height),
+			0,
+			self.RADIUS_CORNERS
+		)
+
+
+class Code(gui.ItemList):
+	def __init__(self, position: gui.Position):
+		gui.ItemList.__init__(self, position, gui.Dimensions(500, 250))
+
+	def add_code_block(self, code_block: CodeBlock):
+		self.add_item(code_block)
diff --git a/src/gui.py b/src/gui.py
index 1126674..bb7068c 100755
--- a/src/gui.py
+++ b/src/gui.py
@@ -53,11 +53,14 @@ class Dimensions:
 		self.width = width
 		self.height = height
 
+	def __add__(self, dimensions: Self):
+		return Dimensions(self.width + dimensions.width, self.height + dimensions.height)
+
 	def as_tuple(self):
-		return (self.width, self.height)
+		return self.width, self.height
 
 	@staticmethod
-	def from_tuple(tuple):
+	def from_tuple(tuple: Tuple):
 		return Dimensions(tuple[0], tuple[1])
 
 
@@ -69,6 +72,10 @@ class Drawable:
 		self.surface.blit(drawable.surface, position.as_tuple())
 
 	def clear(self, color = Color(0, 0, 0)):
+		if color is None:
+			self.surface.fill(pygame.Color(0, 0, 0, 0))
+			return
+
 		self.surface.fill(color.as_tuple())
 
 	def get_image(self):
@@ -80,6 +87,9 @@ class Drawable:
 	def get_dimensions(self) -> Dimensions:
 		return Dimensions.from_tuple(self.surface.get_size())
 
+	def set_transparency(self, transparency: float):
+		self.surface.set_alpha(255 - 255 * transparency)
+
 
 class Image(Drawable):
 	def __init__(self, path = None):
@@ -98,6 +108,7 @@ class Screen:
 	def __init__(self, title: str, resolution: Dimensions):
 		self.resolution = resolution
 		self.screen = pygame.display.set_mode(resolution.as_tuple(), pygame.NOFRAME | pygame.FULLSCREEN | pygame.DOUBLEBUF)
+
 		pygame.display.set_caption(title)
 
 	def get_canvas(self):
@@ -106,9 +117,6 @@ class Screen:
 
 		return canvas
 
-	def get_image(self):
-		image = Image()
-
 	def update(self) -> None:
 		pygame.dispay.flip()
 
@@ -122,14 +130,20 @@ class Screen:
 		return resolutions
 
 
-class Visualization():
-	def __init__(self, surface: Canvas, position: Position):
-		self.surface = surface
+class Visualization:
+	def __init__(self, canvas: Canvas, position: Position):
+		self.canvas = canvas
 		self.position = position
 		self.on_hover = lambda : None
 
 	def draw(self, canvas: Canvas) -> None:
-		canvas.draw_inside(self.surface, self.position)
+		canvas.draw_inside(self.canvas, self.position)
+
+	def set_transparency(self, transparency: float):
+		self.canvas.set_transparency(transparency)
+
+	def get_dimensions(self) -> Dimensions:
+		return self.canvas.get_dimensions()
 
 	def is_inside(self, position: Position) -> bool:
 		if position.x < self.position.x:
@@ -138,7 +152,7 @@ class Visualization():
 		if position.y < self.position.y:
 			return False
 
-		dimensions = self.surface.get_dimensions()
+		dimensions = self.canvas.get_dimensions()
 
 		if position.x > self.position.x + dimensions.width:
 			return False
@@ -161,33 +175,21 @@ class Clickable(Visualization):
 class Dragable(Clickable):
 	def __init__(self, canvas: Canvas, position: Position):
 		Clickable.__init__(self, canvas, position)
-		self.on_drag = lambda : None
-		self.on_drop = lambda : None
-		self.on_fail = lambda drag : None
+		self.on_drag = lambda: None
+		self.on_drop = lambda dropable: None
+		self.on_fail = lambda drag: None
 
 	def drag(self) -> None:
 		self.on_drag()
 
-	def drop(self) -> None:
-		self.on_drop()
+	def drop(self, dropable: 'Dropable') -> None:
+		self.on_drop(dropable)
 
 	def fail(self, drag: 'Drag'):
 		self.on_fail(drag)
 
 
-class Dropable(Visualization):
-	def __init__(self, canvas: Canvas, position: Position):
-		Visualization.__init__(self, canvas, position)
-		self.on_drop = lambda dragable: None
-
-	def drop(self, dragable: Dragable) -> None:
-		self.on_drop(dragable)
-
-
 class Container(Visualization):
-	ROWS = 0
-	COLUMNS = 1
-
 	def __init__(self, position: Position, dimensions: Dimensions):
 		Visualization.__init__(self, Canvas(dimensions), position)
 
@@ -195,18 +197,19 @@ class Container(Visualization):
 		self.background_color = Color(0, 0, 0)
 		self.visualizations = []
 		self.clickables = []
+		self.dropables = []
 
 	def set_background_image(self, image: Image) -> None:
 		self.background_image = image
 
 	def render(self) -> None:
-		self.surface.clear(self.background_color)
+		self.canvas.clear(self.background_color)
 
 		if self.background_image is not None:
-			self.surface.draw_inside(self.background_image, Dimensions(0, 0))
+			self.canvas.draw_inside(self.background_image, Dimensions(0, 0))
 
 		for visualization in self.visualizations:
-			visualization.draw(self.surface)
+			visualization.draw(self.canvas)
 
 	def add_visualization(self, visualization: Visualization) -> None:
 		self.visualizations.append(visualization)
@@ -215,6 +218,33 @@ class Container(Visualization):
 		self.add_visualization(clickable)
 		self.clickables.append(clickable)
 
+	def add_dropable(self, dropable: 'Dropable'):
+		self.add_visualization(dropable)
+		self.dropables.append(dropable)
+
+
+class Dropable(Container):
+	def __init__(self, position: Position, dimensions: Dimensions):
+		Container.__init__(self, position, dimensions)
+		self.on_drop = lambda dragable: None
+
+	def drop(self, dragable: Dragable) -> None:
+		self.on_drop(dragable)
+
+
+class Text(Visualization, Drawable):
+	def __init__(self, text: str, size: int = 12, font_family: str = 'freesansbold.ttf', color: Color = Color(255, 255, 255)):
+		font = pygame.font.Font(font_family, size)
+		self.surface = font.render(text, True, color.as_tuple())
+
+		Visualization.__init__(
+			self,
+			Canvas(Dimensions.from_tuple(self.surface.get_size())),
+			Position(0, 0)
+		)
+
+		self.canvas.surface = self.surface
+
 
 class Drag:
 	def __init__(self, dragable: Dragable, cursor_offset: Position):
@@ -234,10 +264,10 @@ class UI:
 		self.drag = None
 		self.containers = []
 
-	def init(self):
+	def init(self) -> None:
 		pass
 
-	def update(self):
+	def update(self) -> None:
 		self.canvas.clear()
 
 		for container in self.containers:
@@ -246,13 +276,13 @@ class UI:
 
 		pygame.display.update()
 
-	def add_container(self, container: Container):
+	def add_container(self, container: Container) -> None:
 		self.containers.append(container)
 
-	def exit(self):
+	def exit(self) -> None:
 		self.is_running = False
 
-	def main(self):
+	def main(self) -> None:
 		while self.is_running:
 			event = pygame.event.wait()
 
@@ -284,7 +314,7 @@ class UI:
 
 		clickable = clickables_clicked[-1]
 
-		if type(clickable) is Dragable:
+		if self._is_in_filter(clickable, [Dragable]):
 			self.drag = Drag(
 				clickable,
 				Position.from_tuple(event.pos) - clickable.position
@@ -292,7 +322,7 @@ class UI:
 
 		clickable.click()
 
-	def _handle_drag(self, event: pygame.event.Event):
+	def _handle_drag(self, event: pygame.event.Event) -> None:
 		position_cursor = Position.from_tuple(event.pos)
 
 		position = position_cursor - self.drag.cursor_offset
@@ -300,7 +330,7 @@ class UI:
 		self.drag.dragable.position = position
 		self.drag.dragable.drag()
 
-	def _handle_drop(self, event: pygame.event.Event):
+	def _handle_drop(self, event: pygame.event.Event) -> None:
 		if self.drag is None:
 			return
 
@@ -317,11 +347,11 @@ class UI:
 
 		self.drag = None
 
-	def _handle_mouse_motion(self, event: pygame.event.Event):
+	def _handle_mouse_motion(self, event: pygame.event.Event) -> None:
 		if type(self.drag) is Drag:
 			self._handle_drag(event)
 
-	def _get_visualizations_hovered(self, cursor_position: Position, filter: list = []):
+	def _get_visualizations_hovered(self, cursor_position: Position, filter: list = []) -> list[Visualization]:
 		containers_hovered = []
 		visualizations_hovered = []
 
@@ -341,13 +371,17 @@ class UI:
 
 		return visualizations_hovered
 
-	def _get_clickables_clicked(self, event: pygame.event.Event):
-		return self._get_visualizations_hovered(
+	def _get_clickables_clicked(self, event: pygame.event.Event) -> list[Clickable]:
+		clickables = self._get_visualizations_hovered(
 			Position.from_tuple(event.pos),
 			[Clickable, Dragable]
 		)
 
-	def _is_in_filter(self, visualization: Visualization, filter: list = []) -> bool:
+		print(clickables)
+
+		return clickables
+
+	def _is_in_filter(self, visualization: Visualization, filter: list[Visualization] = []) -> bool:
 		if len(filter) == 0:
 			return True
 
@@ -359,20 +393,27 @@ class UI:
 		return False
 
 
-class IconButton(Clickable):
-	def __init__(self, icon: Image, icon_hover = None):
-		self.icon = icon
-		self.icon_hover = icon_hover
+class ListItem(Dragable):
+	def __init__(self, canvas: Canvas):
+		Dragable.__init__(self, canvas, Position(0, 0))
+
+
+class ItemList(Dropable):
+	def __init__(self, position: Position, dimensions: Dimensions):
+		Dropable.__init__(self, position, dimensions)
+
+	def add_item(self, item: ListItem) -> None:
+		self.add_dropable(item)
 
 
 class ResourceContainer:
 	def __init__(self):
 		self.images = {}
 
-	def add_image(self, name, url):
+	def add_image(self, name, url) -> None:
 		self.images[name] = Image(url)
 
-	def get_image(self, name):
+	def get_image(self, name) -> Image:
 		return self._get_resource(self.images, name)
 
 	def _get_resource(self, resources: list, name: str):
@@ -382,7 +423,7 @@ class ResourceContainer:
 			raise Exception('Resource "%s" not found!' % (name))
 
 	@staticmethod
-	def from_json_file(json_file):
+	def from_json_file(json_file) -> Self:
 		with open(json_file, 'r') as file:
 			data = json.loads(file.read())