cross browser blur filter using css

blur.css

.blur {
    -webkit-filter: blur(3px);
    -moz-filter: blur(3px);
    -ms-filter: blur(3px);
    -o-filter: blur(3px);
    /* FF doesn't support blur filter, but SVG */
    filter: url("data:image/svg+xml;utf8,<svg height='0' xmlns='http://www.w3.org/2000/svg'><filter id='svgBlur' x='-5%' y='-5%' width='110%' height='110%'><feGaussianBlur in='SourceGraphic' stdDeviation='5'/></filter></svg>#svgBlur");
    filter: progid: DXImageTransform.Microsoft.Blur(PixelRadius = '3');
    filter: blur(3px);
}