.txtMSG {
    position: absolute;
    top: 28%;
    left: 50%;
    transform: translate(-50%, -50%); /* This perfectly centers the text */
    background-color: rgba(0, 0, 0, 0.7); 
    color: white;
    padding: 10px 20px;
    font-size: 20px;
    text-align: center;
}