html, body {
    color: #000;
    background-color: black;
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    font-size: 16px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    -webkit-touch-callout: none;
}

.center {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
}

.center img {
    width: 250px;
    height: 250px;
    object-fit: contain;
    -webkit-user-drag: none;
    touch-action: none;
}