#goodcover {
    display: none;
    position: absolute;
    top: 0%;
    left: 0%;
    width: 100%;
    height: 133%;
    background-color: black;
    z-index: 1001;
    -moz-opacity: 0.8;
    opacity: 0.50;
    filter: alpha(opacity=80);
}
#code {
    width: 300px;
    height: 500px;
    background-color: #fff;
    padding: 10px;
    position: absolute;
    display: none;
    left: 45%;
    z-index: 1002;
}
.close1 {
    width: 300px;
    height: 60px;
}
#closebt {
    float: right;
}
#closebt img {
    width: 20px;
}
.goodtxt {
    text-align: center;
}