footer{
    text-align:center;
}
body{
    background: url(bg.jpg);
    background-size: cover;
    background-repeat: no-repeat;
}
h1, h2, h3, h4, h5, p {
    color:white;
}
header,footer{
    background:#00000033;
    margin-bottom:1.5em;
    border-radius:1em;
}
nav{
    margin-bottom:2rem;
}