DashCanvas is not shown in div

Dash Python
1

hi, I have created DashCanvas in a div which is not shown in it.

html.Div([
			dash_canvas.DashCanvas(
                            id='canvas',
                            width=200,
                            height=100,
                            scale=10,
                            filename='https://upload.wikimedia.org/wikipedia/commons/e/e4/Mitochondria%2C_mammalian_lung_-_TEM_%282%29.jpg',
                            
                        ),

],className = 'nine columns', id = 'output-image-upload',style = {'border': '2px solid lightblue', 'height':500})