body {
    font-family: "open sans", san-serif;
    font-size: 18px;
}

.header {
    background-color: #D0D0FF;
    text-align: center;
    padding: 20px;
}

.topnav {
    overflow: hidden;
    color: white;
    background-color: #0000FF;
    padding: 5px;
}

.topnav a:link {
    color: white;
    text-decoration: none;
}

.topnav a:visited {
    color: white;
    text-decoration: none;
}

.topnav a:hover {
    color: white;
    text-decoration: underline;
}

.alignleft {
    float: left;
}

.alignright {
    float: right;
}