.nav-list{
    position: absolute;
    top: 0;
    left: 0;
    background-color: #2bf;
    height: 95%;
    width: 20%;
    margin: 0;
    padding: 5px;
}
.content{
    position: absolute;
    top: 0;
    right: 0;
    background-color: #eee;
    height: 95%;
    width: 80%;
    margin: 0;
    padding: 5px;
}