how to blur a image in css code example

Example 1: how to do a background blur in css

/* Answer to "blur behind element css" */

/*
	This blurs everything behind the element it's applied to
*/

backdrop-filter: blur(10px);

Example 2: how to blur the background image in html

.bg-image {
    /* The image used */
    background-image: url("photographer.jpg");

    /* Add the blur effect */
    filter: blur(8px);
	-webkit-filter: blur(8px);

	height: 100%;
    background-position: center;
}

Example 3: css blur background image only

// best workaround is two images layered... (one on left is on top)
background-image: url(opaque_blurred.png), url(regular_bakground_img.jpg);
// BAM! that right there is worth at least a buck donation ;-)