.promotion {
    display: none;
    position: fixed;
    z-index: 999;
    left: 0;
    top: 30px;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.5);
}

.popup-content {
    background-color: #fff;
    margin: 10% auto;
    padding: 20px;
    border: 1px solid #888;
    width: 80%;
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close:hover,
.close:focus {
    color: #000;
    text-decoration: none;
    cursor: pointer;
}
#btnpromotion{
    background: linear-gradient(94deg, #1163a6, rgb(26,141,181) 24%, rgb(21,171,181) 51%, rgb(25,171,136) 77%, #66b54c), #213368;
    color: #ffff;
    border-radius: 15px;
    padding: 10px;
    font-weight: 700;
    border: none;
}