I have set up all corrected. But I want the div to become relatively aligned. But when I try to change class "ptro-holder" from fixed to absolute, all drawings shift to the top position. No matter where my cursor is , it always draws on top.
You can see here, https://prnt.sc/g9fr79
I have cursor at middle of canvas area, but it drew the ellipse on top of drawing portion

I have set up all corrected. But I want the div to become relatively aligned. But when I try to change class "ptro-holder" from fixed to absolute, all drawings shift to the top position. No matter where my cursor is , it always draws on top.
You can see here, https://prnt.sc/g9fr79

I have cursor at middle of canvas area, but it drew the ellipse on top of drawing portion