body { background-color: #e0e0e0; user-select: none; }

#contentFrame {
    width: 50%; height: 50%; background-color: #fff;
    position: fixed; transform: translate(-50%, -50%);
    top: 50%; left: 50%; border-radius: 15px;
    box-shadow: 2px 2px 2px 1px rgb(0 0 0 / 20%);
    padding: 15px; min-width: 288.288px;
    min-height: 162.162px;
}

#titleLabel {
    font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
    width: 100%; text-align: center; margin-top: 0;
}

#buttonFrame {
    width: fit-content; height: fit-content; position: fixed;
    transform: translate(-50%, -50%); top: 50%; left: 50%;
    display: flex; flex-direction: column; gap: 5px;
}

#startButton, #authorButton {
    width: 150px; height: 30px; border-radius: 7px;
    background-color: #0099ff; color: #fff; cursor: pointer;
    border-style: none;
}