body {
    margin: 0;
    padding: 0;
    color: #333;
    background-color: lightgrey;
}

a {
    color: black;
}

#content {
    padding: 20px;
    background-color: #fff;
    clear: both;
}

#dataImg {
    float: right;
    margin-left: 20px;
    margin-bottom: 20px;
}

#logoDiv {
    background-color: #444;
    padding: 20px;
}

#logoDiv img {
    max-width: 60%;
}

#mainNavDiv {
    padding: 20px;
}

footer {
    padding: 20px;
}

.nav ul {
    list-style-type: square;
}

.nav li>a {
   color: #555;
   text-decoration: none;
}

.nav li>a:hover, .nav li.active>a {
    color: #000;
}

.nav li.active>a {
    font-weight: bold;
}