/* mycss.css */

#container {
    width: 600px;
    margin: 0 auto;
}

#header {
    margin-bottom: 15px;
}

#menu {
    margin-bottom: 15px;
}

#main {
    overflow: hidden;
    margin-bottom: 15px;
}

#contents {
    float: left;
    width: 400px;
}
#sidebar {
    float: right;
    width: 180px;
}

#footer {

}