html,
body {
    position: relative;
    width: 100%;
    height: 100%;
}

body {
    color: #333;
    margin: 0;
    padding: 8px;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
}

i {
    font-size: 24px;
}