body, html {
    margin:0;
    padding:0;
    width:100%;
    height:100%;
} 

body {
    background-color:#CCCCCC;
    line-height: 2em;
}

#outer {
    margin: 2em;
}

nav {
    width: 15em;
    background-color: #9FB6CD;
    float: left;
}

header, main {
    margin-left: 16em;
}

header {
    background-color: #9FB6CD;
    padding: 2em;
}

h1 {
    font-size: 2.5em;
}

p {
    text-justify:auto;
}

ul {
    padding: 0;
    list-style: none;
}

nav li {
    font-weight: bold;
    font-size: 1.2em;
    text-align: center;
    margin-bottom: 2em;
    margin-top: 2em;
    margin-right: 1em;
    margin-left: 1em;
    background-color: #4169E1;
}

nav li a {
    width: 100%;
    padding-top: 0.5em;
    padding-bottom: 0.5em;
    padding-left: 0;
    padding-right: 0;
    display: inline-block;
}

nav li a:link {
    color: black;
    text-decoration: none;
}

nav li a:visited {
    color: navy;
    text-decoration: none;
}

nav li a:hover {
    color: black;
    background-color: #2586d7;
}

nav li a:active {
    background-color: white;
    color: aqua;
}

dt {
    font-weight: bold;
    text-transform: uppercase;
    margin-top: 0.5em;
}

dd {
    margin-left: 1.5em;
    line-height: 0.75em;
}