body {
    width: 960px;
    margin: 0 auto;
}

#content {
    overflow: auto;
    height: 100%;
}

#nav,
#feature,
#footer {
    background-color: #efefef;
    padding: 10px;
    margin: 10px;
}

.column1,
.column2,
.column3 {
    background-color: #efefef;
    width: 300px;
    float: left;
    margin: 10px;
}

li {
    display: inline;
    padding: 5px;
}