Flashing images

Why would my images be flashing on and off on the website?
How can I fix it?

What do you mean by flashing?

I don’t know, it is like blinking on the screen on and off

Do you have any animations in there? Did you look at it on a different device/computer?

Shouldve clarified.
No animations.
Only when I look at it on different devices.

Maybe its a problem of the device. Have different people look at it on their device or computer and tell you if they are seeing the same or not.