body {
    background-image: linear-gradient(to bottom, black, rgb(29, 50, 135));
    font-family: Arial;
    text-align: center;
    color: white;
}
.nav a{
    margin: 10px;
    padding: 10px;
    background-color: rgb(39, 85, 164);
    color: white;
}
.nav a:hover{
    background-color: rgb(95, 37, 172);
}