style.css

* {
    margin: 0;
}

body {
    width: 100%;
}

h1 {
    background: black;
    color: white;
    text-align: center;
    padding: 5px;
    margin: 0px;
}

div.wrapper-nav, footer {
    background: rgba(0, 0, 0, 0.8);
}

div.wrapper-nav {
    height: 30px;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    padding: 5px 200px;
}

div.wrapper-nav p.nav {
    color: darkgray;
    font-size: 20px;
    text-align: center;
    vertical-align: middle;
}

div.wrapper-nav p.nav:hover {
    color: white;
}

div.wrapper {
    background: rgba(0, 0, 0, 0.5);
    display: grid;
    grid-template-columns: 3fr 1fr;
    grid-gap: 5px;
    padding: 5px;
}

div.wrapper div {
    background: white;
    padding: 3px;
}

p {
    font-size: 14px;
    margin-bottom: 10px;
}

footer {
    color: white;
    padding: 3px;
    font-size: 10px;
}