Preview:
/* Center Form - Start */

.center-form .gform_footer input[type=submit] {
    width: 220px !important;
    max-width: 100% !important;
    text-transform: uppercase !important;
    letter-spacing: 2px !important;
    font-size: 18px;
    padding: 5px 10px !important;
}

.center-form  {
    width: 900px !important;
    max-width: 100% !important;
    margin-inline: auto;
}

.center-form {
    border: 1px solid #e1e1e1;
    padding: 25px 25px 10px;
    border-radius: 10px;
    box-shadow: 0 0 6px 2px #efefef;
}

@media (min-width: 768px) {
    .center-form {
        padding: 40px 40px 20px;
    }
}

@media (min-width: 641px) {
    .center-form .gform_footer input[type=submit]  {
        padding:15px !important
    }
}

/* Center Form - Ends */
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