#body {
    padding: 50;
    margin: 50;
    font-family: Arial;
    font-size: 20px;
}
#nav {
	padding: 0;
    margin: 0;
	background-color: #87CEFA;
}
#nav_wrapper {
    width: 947px;
    margin: 0 auto;
    text-align: left;
}
#nav ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
    position: relative;
    min-width: 250px;
}
#nav ul li {
    display: inline-block;
}
#nav ul li:hover {
    background-color: #66C;
}
#nav ul li a, visited {
    color: black;
    display: block;
    padding: 15px;
    text-decoration: none;
}
#nav ul li:hover ul {
    display: block;
}
#nav ul ul {
    display: none;
    position: absolute;
    background-color: #0F3;
    border: none;
    border-top: 0;
    margin-left: -5px;
}
#nav ul ul li {
    display: block;
}
#nav ul ul li a:hover {
    color: white;
}