ol {
    font-size: 20px;
}

#navi {
    overflow: scroll;
    float: left;
    height: 700px;
    width: 250px;
    padding: 20px;
    margin-right: 30px;
    background-color: #f1f1f1;

}

#con {
    padding: 30px;
    font-size: 20px;
}