Hello; My name is Miguel Nieves and I'm developing a site at www.lebensborn.us so my question is as followes: Ssincw the release of iOS 7, there has been a small yet elegant alteration to the UI, blurring of the backgrounds of certain elements. I have tried using blur.js and several other techniques such as svg blurring, to no avail. The issue is they only work on images and, to a certain extent, entire pages. What I would like to be able to do is blur whatever is directly behind, and exclusively behind, certain fixed division elements even as I scroll down the page... Is there or will there be a way (at least for Firefox) to achieve such ambition?