#scanDialog {
    padding: 0;
    margin: 0;
    width: 100%;
    height: 100%;
    max-width: 100%;
    max-height: 100%;
    box-sizing: border-box;
    border: none;
}
#closeScanBtn {
    border: none;
    background-color: transparent;
    position: absolute;
    top: 10px;
    right: 10px;
    z-index: 1;
}
#closeScanBtn img {
    width: 48px;
    height: 48px;
}
#reader {
    width: 100%;
    height: 100%;
    display: flex;
}
#reader video {
    max-width: 100%;
    max-height: 100%;
}