.js-successbox.t-form__successbox { 
    height: 360px;
    background-color: #1A1B22;
    border: #1A1B22;
    text-align: left;
    padding: 0px;
}

.js-successbox.t-form__successbox.t-text.t-text_sm{
    font-family: 'Montserrat';
    font-weight: normal;
    font-size: 16px
}