html, body {
    margin: 0;
    padding: 0;
    height: 100%;
}

html {
    filter: hue-rotate(210deg);
}

body {
    background-image: url(../img/experiments.png);
    background-repeat: no-repeat;
    background-position: center center;
    height: 100%;
}

@media (max-width: 786px) {
    body {
        background-size: contain;
    }
}