body {
    width:960px;
    margin: 0px auto;
    font-family: Arial, Helvetica, sans-serif;
    color:#666;
}

p {
    margin-top:20px;
    margin-bottom:20px;
    line-height:150%;
}

body>header {
    background: #4169E1;
    padding: 20px;

    clear: both;
}

body>header hgroup h1 {
    font-size: 2.2em;
    margin-bottom:10px;
    color: #fff;
}

body>header hgroup h2 {
    font-size: 1.0em;
    color: #fff;
}

body>section {
    width: 880px;
    float:left;
}

body>p {
    width: 900px;
}

body>footer {
    height:20px;
    clear:both;
}

nav {
    height:40px;
    background: #000;
    color: #fff;
    font-weight: bold;
    clear:both;
}

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

nav ul li {
    display: block;
    float: left;
    margin-right: 0px;
    padding:0;
}

nav ul li a {
    color: #fff;
    background: #000;
    text-decoration: none;
    padding:12px;
    display:block;
    margin:0;
}

nav ul li a:hover {
    background: #505050;
}

ol {
    display: block;
}

ol li {
    display: list-item;
    margin-right: 20px;
    padding: 1.2mm;
}

ul li {
    display: list-item;
    padding: 1.2mm;
}

body>article {
    width:710px;
    padding:10px;
    float: left;
}

article>header {
    border: 1px #666 dotted;
    padding:10px;
}

article>header h1 {
    color: #000;
    font-size: 1.6em;
}

article>header time {
    font-size: 0.7em;
}

section {
    padding-bottom:20px;
}

section>header h1 {
    padding-top:10px;
    padding-bottom:10px;
    font-size: 1.5em;
    color: #666;
}

section>header h2 {
    padding-top:10px;
    padding-bottom:10px;
    font-size: 1.3em;
    color: #666;
}

body>aside {
    width:190px;
    padding:20px;
    padding-bottom:0px;
    float: left;
    background: #ccc;
    color: #000;
    font-size:0.8em;
}

aside>header{
    padding-top:20px;
}

aside>header h1 { 
    font-size: 1.5em;
    color: #000;
}

em {
    font-weight: bold;
    font-style: normal;
}