body {
    font-family: Arial, sans-serif;
    margin: 0px;
    background-color: #f4f4f4;
    overflow: hidden;
}

h1 {
    text-align: center;
    position: absolute;
    transform: translate(-50%, -50%);
    color: #fafafa;
    top: 33%;
    left: 50%;
    font-size: 3em;
}

img {
    width: 100%;
    height: auto;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    filter: grayscale(30%) brightness(80%);
    box-shadow: 0 0 0 100vw rgba(0,0,0,0.4) inset;
}

@media (orientation: portrait) {
    img {
        width: auto;
        height: 100%;
    }

    h1 {
        top: 66%;
        font-size: 1em;
    }
}