#container-thanks {
    display: none;
    position: fixed;
    width: 300px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    z-index: 3;
}

.thank-you-icon {
    font-size: 48px;
    color: #4CAF50;
    margin-bottom: 20px;
}

.overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 10;
}

.form-con.centered {
    position: fixed;
    left: 40%;
    top: 50%;
    transform: translate(0%, 0%);
}

@media (max-width: 978px) {
    #container-thanks {
        width: 80%; /* Adjust as needed */
        max-width: 300px; /* Adjust as needed */
    }
}