background image -> blur

    body {
        position: absolute;
        top: 0; bottom: 0; left: 0; right: 0;
        width:100%;
        height: 100%;
    }
    body:before {
        content: "";
        position: absolute;
        height: 100%; width: 100%;
        background: url("{{URL::to("files/"."lg".$img->img)}}") no-repeat center center fixed;
        background-size: cover;
        background-position: center;
	-webkit-background-size: cover;
	-moz-background-size: cover;
	-o-background-size: cover;
	background-size: cover;
	opacity:0.6;
        z-index: -1;
        -webkit-filter: blur(2px);
	-moz-filter: blur(2px);
	-o-filter: blur(2px);
	-ms-filter: blur(2px);
        -webkit-filter: blur(2px);
    }