body {
    font-family: Arial;
}

header {
    display:flex;
    justify-content:space-between;
    padding:10px;
    background:#222;
    color:#fff;
}

nav a {
    color:white;
    margin:10px;
}

.hero {
    text-align:center;
    padding:100px;
    background:#f4f4f4;
}