body {
    font-family: Arial, Helvetica, sans-serif;
}

img[src*=vignette] {
    margin-right: 20px;
    margin-bottom: 10px;
    cursor: pointer;
}

#grande {
    transition-property: opacity;
    transition-timing-function: ease-in-out;
    opacity: 0;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: -1;
    display: flex;
    justify-content: center;
    align-items: center;
}

#grande>img {
    max-width: 80vw;
    max-height: 80vh;
}