body {
        
        margin: 0;
        padding: 0;
        font-family: "Comic Sans MS", cursive, sans-serif;
        background-image: url(http://www.jpl.nasa.gov/spaceimages/images/wallpaper/PIA17563-1920x1200.jpg);
         background-size: 100%;
         color: #66CDAA;
         background-color: salmon;
    }
    div {
        width: 600px;
        margin: 5em auto;
        padding: 50px;
        background-color: #BA55D3;
        border-radius: 1em;
        
       
    }
   
    ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    width: 200px;
    background-color: #f1f1f1;
}

li a {
    display: block;
    color: #000;
    padding: 8px 16px;
    text-decoration: none;
}

/* Change the link color on hover */
li a:hover {
    background-color: #555;
    color: white;
}
ul {
    border: 1px solid #555;
}

li {
    text-align: center;
    border-bottom: 1px solid #555;
}

li:last-child {
    border-bottom: none;
}

#nav {
    margin-left: 15%;
   
    background-color: white;
    width: 50%;
    text-align: center;
   
}