.progressive {
    position: relative;
    display: block;
    overflow: hidden;
    outline: none
}

.progressive img {
    display: block;
    width: 100%;
    max-width: none;
    height: auto;
    border: 0;
}

.progressive img.preview {
    filter: blur(0.5vw);
    /*transform: scale(1)*/
}

.progressive img.reveal {
    position: absolute;
    left: 0;
    top: 0;
    animation: progressiveReveal 0.5s linear
}

@keyframes progressiveReveal {
    0% {
        /*transform: scale(1);*/
        opacity: 0
    }
    to {
        /*transform: scale(1);*/
        opacity: 1
    }
}