footer {
    text-align: right;
    font-family: 'Courier New', Courier, monospace;
    font-size: large;
    color: blueviolet;
    margin: 10px
}

body {
    background-color: bisque;
}

h1 {
    color: white;
    text-shadow: 1px 1px 2px black, 0 0 25px blue, 0 0 5px darkblue;
}

#grad {
    background-image: linear-gradient(white, red, green, blue);
    height: 1080px;
}

nav {
    overflow: hidden;
    background-color: black;
    padding: 5px
}

nav a {
    float: left;
    color: slategray;
    padding: 15px 20px;
    text-decoration: none;
    display: block;
    text-align: center;
}

nav a:hover {
    background-color: antiquewhite;
}