aside, article, section, header, footer, nav, html, body, p, h1, h2, h3, div, ul {
    margin: 0;
    padding: 0;
}

body {
    background-color: #000;
    font-family: sans-serif;
    height: 100%;
    width: 100%;
}

h1 {
    display: block;
    position: fixed;
    font-size: 300px;
    color: #fff;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}