body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
}

#tray {
    position: absolute;
    bottom: 20px; /* Adjust based on your layout */
    left: 20px; /* Adjust based on your layout */
    width: 100px;
    height: 100px;
    background-color: lightgray;
    border: 2px solid #000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ball {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background-color: white;
    border: 2px solid black;
}

#place-button {
    position: absolute;
    bottom: 20px; /* Adjust based on your layout */
    left: 150px; /* Adjust based on your layout */
    padding: 10px 20px;
    font-size: 12px;
}