div.container{
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
}

div.container div{
    display: inline-block;
}

div.container div.navigation{
    background-color: red;
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 15%;
}

div.container div.navigation h1{
    text-align: center;
    font-size: 150%;
}

div.container div.navigation ul.menu{
    font-size: 30px;
}

div.container div.navigation div.login{
    position: absolute;
    top: 85%;
    left: 20%;
    font-size: 15px;
}

div.container div.navigation p.commercial{
    position: absolute;
    top: 95%;
    left: 25%;
    font-size: 15px;
}

div.container div.content{
    background-color: blue;
    position: absolute;
    top: 0;
    left: 15%;
    height: 100%;
    width: 85%;
    overflow: scroll;
}

div.comment {
    display: block;
    scoll-behavior: auto;
}