body {
    margin: 0;
    padding: 0;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 19px;
}
nav {
    background-color: #f3f3f3;
    border-bottom: 1px solid black;
    text-align: right;
    padding: 20px;
}
.menu {
    list-style: none;
    padding: 0;
    margin: 0;
}
.menu li {
    display: inline;
    margin: 15px;
}
.menu a {
    color: black;
    text-decoration: none;
}