.mailjet_widget_front_container {
    float: left;
    width: 100%;
}

input#mailjet_widget_email {
    float: left;
    border-radius: 15px 0 0 15px;
    padding: 10px 15px;
    max-width: 75%;
    min-width: 50%;
}

#mailjet-widget-title-wrap h4{
    display:none;
}

input[type="submit"] {
    padding: 11px 10px;
    border: 0;
    border-radius: 0 15px 15px 0;
    background: #e09900;
    color: white;
    max-width: 25%;
    min-width: 20%;
}

span.mailjet_widget_form_message {
    font-size: 15px;
    color: #c90707;
    font-weight: bold;
    margin-top: 15px !important;
    float: left;
}