.image_frame {
    position: relative; 
    overflow: hidden;
}
.image_frame > div.if_background {
    position: absolute; 
    top: -5px; 
    bottom: -5px; 
    left: -5px; 
    right: -5px;
    z-index: 0;
}
.image_frame > img.if_foreground {
    z-index: 1;
    position: absolute;
}
.image_frame.if_blur > div.if_background { 
    -webkit-transform: translate3d(0, 0, 0);
    -webkit-filter: blur(5px);
    -moz-filter: blur(5px);
    -o-filter: blur(5px);
    -ms-filter: blur(5px);
    filter: blur(5px);   
    background-size: cover;
}
.image_frame.if_blur > img.if_foreground {
    box-shadow: 0px 0px 10px 4px rgba(0,0,0,0.5);
}