body {
    background-color: black;
    margin: 0;
}

.centered {
    margin: 0;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.invisible,
.invisible:visited,
.invisible:active {
    cursor: default;
}

.pic {
    border-style: none;
    border-radius: 10px;
    box-shadow: black;
    height: auto;
    width: auto;
    max-width: 99vw;
    max-height: 99vh;
}