body {
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: white;
}

.fullscreen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
}

/* hide controls with opacity and pointer-events, not display: none */
.controls.hidden {
    opacity: 0;
    /* pointer-events: none; */
    transition: opacity 0.3s ease;
}

.controls {
    opacity: 1;
    /* pointer-events: auto; */
    transition: opacity 0.3s ease;
}