Josh W. Comeau no Twitter: "🔥 The CSS filter `backdrop-filter` lets you apply effects to everything _behind_ the element. Blurring content behind a modal is so much more trivial than it used
Blurry text in Internet Explorer - Stack Overflow
the new code – Cross-browser Image Blur with CSS
FiltersIE | Drupal.org
How to Simulate CSS3 box-shadow in IE6-8 Without JavaScript.
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How can I make the blur effect in IE? - It_qna
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Gaussian blur - Wikipedia
blur() - CSS: Cascading Style Sheets | MDN
CSS filters all the way down to IE4 | by Mate Marschalko | Medium
a) Comparison of deblurring operation (i.e., inverse filter) with two... | Download Scientific Diagram
Cross Browser CSS Image Blur – BrowseEmAll Web Dev Blog