body {
    color: black;
    font-family: Oswald;
    color: #f8f8f8
}
.parentdiv {
    width: 100%;
    height: auto;
    display: flex;
    flex-direction: column;
    background-color: white;
    margin: auto;
    flex-wrap: wrap;
}
header {
    text-align: center;
    font-size: 24pt;
    color: #fff;
    padding: 20px;
    background-color:midnightblue;
}
header h1 {
    margin-bottom: 10px;
}
#nav *{
padding: 0; margin: 0; list-style: none; /* undo margin and bullet formatting*/
}
nav ul {
list-style: none;
}
nav ul li {
display: inline;
margin-right: 20px;
}
nav ul li a {
color: #fff;
text-decoration: none;
}
nav ul li a:hover {
color: gray;
}