#hdr-overlay {
    position: relative;
    height: 20em;
    width: 100%;
    margin: 1em 0;
    border-radius: 1em;
}

#hdr-overlay > video {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    object-fit: fill;
    z-index: -1000000;
    border-radius: 1em;
}

#brightness-test {
    display: flex;
    margin: 0 auto;
    width: 80%;
    height: 50%;
    background-color: white;
    border-radius: 0 0 1em 1em;
}

#centered-div {
    margin: auto;
}

#brightness-test-message {
    margin: 1em;
}

body * {
    mix-blend-mode: multiply !important;
}

a {
    font-size: 0.85em;
}

html {
    font-size: 0.75em;
}

input[type="range"] {
    width: 50%;
}