How to make an element transparent to clicks but still visible?

I'm interested in putting an inset box shadow on something like an iframe. While the strategy of overlaying a div over the iframe gives the expected visual d开发者_Python百科isplay, the div subsequently blocks clicks on the iframe itself.

Sample: http://jsfiddle.net/YqXPg/

So is there a way to pull off the inset shadow as a "framing" effect?

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Yes, there's pointer-events: none.

See: http://jsfiddle.net/YqXPg/3/

A version that makes the overlay more obvious: http://jsfiddle.net/YqXPg/4/

Note that this property doesn't work with IE, but if I remember correctly, IE will allow you to click through the transparent parts of the overlay div anyway.