How to Create a Dynamic, Vista/7-Style Blurred Background in CSS Without Affecting Content?

Blurred Background with CSS

Question:

How can you create a dynamic, Vista/7-style blurred background effect in CSS without affecting the content within the element?

Answer:

Updated (October 2016):

Using SVG Filter and Pseudo-Element:

A more straightforward approach involves using a pseudo-element combined with an SVG blur filter. This technique avoids blurring the content and has broader browser support, including Firefox, Chrome, and Opera.

Original Solution:

Using -moz-element() with SVG Filter (Firefox Only):

1. Utilize the -moz-element() property to define the blurred element as a background image.
2. Apply an SVG blur filter to the background element.
3. Optionally, use jQuery to enable scrolling if the background is fixed.

While this solution is limited to Firefox, it offers a viable option for achieving the desired effect.

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