.stm_importer {
    margin: 20px 20px 0 0;
    background: #fff;
    padding: 30px;
}

.stm_message {
    padding: 40px;
    max-width: 450px;
    text-align: center;
    background: #fff;
    margin: 20px auto;
}
.stm_message_title {
    margin: 20px 0;
    line-height: 1.3;
}
.stm_message.success .stm_message_text {
    font-size: 16px;
}