.words {
    display: none;
    align-items: center;
    justify-content: center;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: 100%;
    z-index: 99999;
}

#btnClose {
    position: absolute;
    right: 20px;
    top: 20px;
    width: 40px;
    height: 40px;
}