* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

html, body {
    height: 100%;
    display: flex;
    flex-direction: column;
    background-color: #f4f7f6;
    color: #333;
}

main {
    flex: 1;
}