html {
    height: 100%;
    font-family: Arial, sans-serif;
    color: #202020;
    background-color: #fefefe;
}

body {
    min-height: 100%;
    margin: 0;
}

.centered-content {
    position: absolute;
    text-align: center;
    max-width: 45em;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}