html5.css

body {
    background-color: #CCCCCC;
    margin: 0px auto;
    max-width: 900px;
    border: solid;
    border-color: #FFFFFF;
    color: black;
}
header {
    background-color: #2289F0;
    display: block;
    color: #FFFFFF;
    text-align: center;
}
h1 {
    font-size: 72px;
    margin: 0px;
}
h2 {
    font-size: 24px;
    margin: 0px;
    text-align: center;
}
h3 {
    font-size: 18px;
    margin: 0px;
    text-align: center;
}
nav {
    display: block;
    width: 100%;
    float: left;
    text-align: center;
    background-color: white;
    padding-top: 20px;
    padding-bottom: 20px;
}
nav a:link, nav a:visited {
    display: inline;
    border-bottom: 3px solid #fff;
    padding: 10px;
    text-decoration: none;
    font-weight: bold;
    margin: 5px;
}
nav a:hover {
    color: white;
    background-color: #F47D31;
}
nav h3 {
    margin: 15px;
}
#container {
    background-color: #CCC
}
section {
    display: block;
    width: 60%;
    float: left;
}
article {
    background-color: #eee;
    display: block;
    margin: 10px;
    padding: 10px;
}
article header {
    padding: 5px;
}
article footer {
    padding: 5px;
}
article h1 {
    font-size: 18px;
}
aside {
    display: block;
    width: 20%;
    float: left;
}
aside h3 {
    margin: 15px;
}
aside p {
    margin: 15px;
    font-weight: bold;
}
footer {
    clear: both;
    display: block;
    background-color: #2289F0;
    color: #FFFFFF;
    text-align: center;
    padding: 15px;
}
footer h2 {
    font-size: 14px;
    color: white;
}
/* links */
a {
    color: #F47D31;
}
a:hover {
    text-decoration: underline;
}