body {
    margin-left: 5%;
    margin-right: 5%;
    font-size: 20px;
}

a {
    text-decoration: none;
    color: blueviolet;
}

nav a {
    font-size: 22px;
}

nav#nav a {
    background-color: aquamarine;
    padding: 5px;
}

nav#nav a:hover {
    background-color: coral;
}

nav#prog-nav {
    margin-top: 20px;
}

img {
    width: 100%;
    height: auto;
}

#header {
    position: relative;
}

#header h1#header-h1 {
    position: absolute;
    top: 8px;
    left: 16px;

    background-color: blanchedalmond;
    padding: 5px;
}