.wpcf7-form .wpcf7-submit, .ninja-forms-cont input[type="submit"] {
    padding: 12px 10px;
    background: #606060 !important;
    border-bottom: 0;
}

.wpcf7-form .wpcf7-submit:hover, .ninja-forms-cont input[type="submit"]:hover {
    background: #40A798 !important;
    color: #ffffff !important;
    border-bottom: 0;
}