.wpcf7-mail-sent-ok {
    border: none !important;
    margin: 25px 0 0 0 !important;
    padding: 7px 0 !important;
    background: #7DCC68 !important;
    color: #fff;
    font-size: 22px;
    text-align: center;
    float: left;
    width: 100%;
    font-family: 'Ubuntu';
    font-weight: 700;
    padding: 20px 0 !important;
}