How do I make my animations "stable"

Hello.

I am making a text-based game

and the game is controlled by buttons.

I made a sprite button, and when the mouse hovers above the button, there's an animation of the buttons beign hovered.

But when it happens, the sprite goes "down"

Let's soppose the sprite is initially at Y= 200, when the mouse hovers above the sprite, the image goes to Y=215, something like that. in some cases, even the X position changes.

How do i fix it?

Thanks since the beggining

Play around with your sprites origins, make sure every image is centered at the same point, a misplaced origin may give the illusion of movement

OH THANKS, I FORGOT IT