body {
    padding-top: 40px;
    padding-left: 10px;
    margin: 0;
}

.myPopup {
    position: absolute;
    width: 100%;
    height: 100%;
    background-color: #A8A8A8;
    opacity: 0.4;
    display: none;
    z-index: 100;
}

#popup-frame {
    position: absolute;
    top: 50%;
    left: 50%;
}

.header {
    background-color: #4F2992;

    height: 50px;

    color: white;
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;

}

document {
    text-align: center;
}


@media (prefers-color-scheme: dark) {
    html {
        background: #2b2b2b;
    }

    body {
        color: white;
    }
}