body {
    margin: auto;
    padding-right: 1em;
    padding-left: 1em;
    max-width: 50em; 
    border-left: 1px solid grey;
    border-right: 1px solid grey;
    color: black;
    font-family: serif;
    font-size: 100%;
    line-height: 120%;
    color: #111; 
}

pre {
    border: 1px solid gray;
    background-color: #ececec;
    color: #1111111;
    padding: 0.5em;
}

code {
    font-family: monospace;
}

h1 a, h2 a, h3 a, h4 a, h5 a, h6 a { 
    text-decoration: none;
    color: #333; 
}

h1 { border-bottom: 1px solid #ddd; }

h1, h2, h3, h4, h5, h6 {font-family: sans-serif;
                     font-weight: bold;
                     color: #182020; }
h1 {
        font-size: 200%;
}

h2 {
        font-size: 150%;
}

h3 {
        font-size: 130%;
}

h4 {
        font-size: 115%;
}

h5 {
        font-size: 110%;
}

h6 {
        font-size: 105%;
        font-style: italic;
}

h1.title {
        font-size: 220%;
        font-weight: bold;
        padding-top: 0.2em;
        padding-bottom: 0.2em;
        text-align: left;
        border: none;
}

h2.author {
	border: none;
}

dt code {
        font-weight: bold;
}
dd p {
        margin-top: 0;
}

#footer {
        padding-top: 1em;
        font-size: 70%;
        color: gray;
        text-align: center;
        }

img {
        width: 100%;
}