.change-wrapper {
    display: inline-flex;
    flex-flow: column;
    width: 900px;
    height: 350px;
    justify-content: flex-start;
}

.change-row {
    display: inline-flex;
    flex-flow: row;
    flex-wrap: wrap;
}

.lblChange {
    width: 200px;
    margin-right:20px;
    margin-top:20px;
    font-size: 12px;
    font-weight: bold;
}

.txtChange {
    width: 200px;
    margin-right: 20px;
}

.btnChange {
    height: 34px;
    margin-right: 20px;
    margin-top: 50px;
}