html {
    height: 100%;
}

body {
    height: 100dvh;
    margin: 0;
    padding: 0 2em;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: sans-serif;
    color: white;
    background-image: linear-gradient(#F00, #00F), url('irrelevant.png');
    background-repeat: no-repeat, repeat;
    background-blend-mode: color-burn;
    background-size: cover, auto;    
}

li:nth-child(2), li:nth-child(2), li:nth-child(4), li:nth-child(5) {
    list-style-type: square;
}

*::-moz-selection {
    color: #000;
    background-color: #FFF;
}

*::selection {
    color: #000;
    background-color: #FFF;
}