* {
    margin: 0;
}

header {
    background-color: #7d340d;
    width: 100%;
    height: 170px;
    padding-top: 10px;
    font-size: 50px;
    color: white;
    text-align: left;
    margin-top: 0px;
}

header h1 {
    margin-left: 200px;
    margin-top: 25px;
}

header img {
    position: absolute;
    right: 0;
    top: 0;
    margin-right: 100px;
    margin-top: 50px;
}
nav     {
    width: 15%;
    height: 100%;
    height: 740px;
    background-color: #7d340d;
    text-align: center;
    float: right;
}
nav img {
    margin-top: -200px;
}
nav a {
    margin-top: 630px;
    font-family: Impact;
    font-size: 15pt;
    color: black;
    text-decoration: none;
    display: inline-block; 
    width: 200px;
    height: 60px;
    text-align: center;
    line-height: 65px;
    background-color: #265317;
    margin-bottom: 50px;
  }
  main img{
    width: 35%;
    float: right;
    margin-left: 100px;
    margin-top: -100px;
}
  article {
    font-size: 15pt;
  }
  #demo {
    color:red; 
  }