if I understand, there’s a background image and on hover, the foreground button and image fade-in. Do you have a specific question about doing this? A ‘rerun’ button implies a video, do you have a video and you want it to fade-in when the video is done?
I have an image that is the background of a web page but it has designed buttons. The purpose is when a user passes with the mouse through each button another image appears (the effect should be like the onmouseover).