.gen-coupon * {
    box-sizing: border-box;
    -moz-box-sizing: border-box;
    -webkit-box-sizing: border-box;
}
.gen-coupon {
    border-radius: 12px;
    border: 2px dotted;
    padding: 6px;
    max-width: 450px;
    margin:10px 0;
}

.gen-coupon-desc {
    border-radius: 14px;
    overflow: hidden;
    background-color: #7cb141;
    color: white;
    line-height: 1.5;
    font-weight: bold;
    font-size: 30px;
    font-family: 'arial';
    text-align: center;
    text-shadow: 3px 3px 4px #222222;
    text-transform: uppercase;
}