body {
    background-color: white;
    margin: 0;
    padding: 0;
    font-family: Verdana, sans;
}

header {
    width: 100%;
    height: 100px;
    margin: 0;
    padding: 0;
    border-bottom: 1px solid black;
}

header h1 {
    font-size: 200%;
    margin: 0;
    padding: 0 0 0 120px;
    position: relative;
    top: 50%;
    transform: translateY(-50%);
}

header #logo {
    float: left;
    width: 100px;
    padding: 0;
    margin: 0;
    text-align: center;
    border-right: 1px solid black;
}

aside {
    width: 100px;
    float: left;
}

section#main {
    margin: 0 0 0 100px;
    padding: 20px;
    border-left: 1px solid black;
    height: 100%;
    max-width: 40em;
}

section#main h1:first-child {
    margin-top: 0;
}

h1 {
    font-size: 160%;
}

h2 {
    font-size: 140%;
}

h3 {
    font-size: 120%;
}

h4, h5, h6 {
    font-size: 100%;
}