How to make a script like the example in the link?

Question

css

www.getuncommon.com/account/my-images
After uploading an image, a field appears where you can freely move the image, and when you go beyond the device area, the image becomes translucent. Moreover, it becomes translucent not just when entering the iPhone image, but precisely when flowing around its contour. How to do this?

Answer 1

With the help of jquery. But unfortunately jQuery doesn't have a "do it like this" function. Therefore, you will have to learn jQuery and write implementations.
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