#drop-zone {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 5px;
    pointer-events: none;
    opacity: 0;
    background-color: rgba(26, 26, 26, 0.7);
    transition: opacity 0.2s;
    font-size: 1.2em;
    font-weight: 600;
    z-index: 1;
}

#drop-zone > div {
    border: 3px dashed rgb(219, 219, 219);
    border-radius: 5px;
    color: rgb(219, 219, 219);
}

#drop-zone.show {
    opacity: 1;
}

html, body {
    width: 100%;
    height: 100%
}