Just before we wrapped up 2025, I saw this proposal for :near(), a pseudo-class that would match if the pointer were to go near the element. By how much? Well, that would depend on the value of the argument provided. Thomas Walichiewicz, who proposed :near(), suggests that it works like this: button:near(3rem) { /* Pointer is within 3rem of the button */ } For those wondering, yes, we can use the Pythagorean theorem to measure the straight-line distance between two elements using JavaScript (“Euclidean distance” is the mathematical term), so I imagine that that’s what would be used behind the scenes here. I have some use cases to share with you, but the demos will only be simulating :near() since it’s obviously not supported in any web browser. Shall we dig in?…