#readAloudBtn {
    position: absolute;
    border: none;
    padding: 8px 12px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    z-index: 9999;
    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
    transition: background-color 0.2s ease;
}
#readAloudBtn:hover {
    background-color: #0056b3;
}