html, body {
    margin: 0;
    background: #000;
    overflow: hidden;
    height: 100%;
    touch-action: none;
    user-select: none;
}

#stage {
    position: relative;
    width: 100%;
    height: 100%;
    cursor: grab;
}

.page {
    position: absolute;
    top: 50%;
    left: 50%;
    max-width: none;
    max-height: none;
    transform-origin: center center;
    will-change: transform;
}

#counter {
    position: absolute;
    bottom: 10px;
    right: 15px;
    color: white;
    font-family: sans-serif;
    opacity: 0.6;
}