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Solution wanted

Hi out there. I am looking for a solution to a tricky problem. I found a design that I find very exciting to implement. However, at the moment I have no idea how I could implement this in Webflow. Maybe one of you has an idea. It is the section with the two cell phone models. When the dark version is replaced by the light one. Looks like a mask. Of course they are absolute positions, but how the exchange should best be created in webflow is still a mystery to me at the moment. Does somebody has any idea? Thanks in advance!