body {
    max-width: 950px;
    margin-left: auto;
    margin-right: auto;
    margin-top: 0px;
    margin-bottom: 0px;
    padding: 0px;
}

h1 {
    font-size: 2em;
    text-align: center;
}

h2 {
    margin-bottom: -5px;
}

h3 {
    padding-left: 3px;
    margin-bottom: -10px;
}

h4 {
    padding-left: 5px;
    margin-bottom: -10px;
}

p {
    padding-left: 6px;
}

p.intro, p#created {
    font-size: 1.1em;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 20px;
}

p#created {
    font-size: .9em;
}

p.note {
    margin-left: 30px;
    margin-right: 30px;
    font-size: .95em;
    color: #444444;
}

#toc { /* table of contents */
    border-top: 3px solid black;
    padding-top: 12px;
    border-bottom: 3px solid black;
    padding-bottom: 12px;
}

.toc1 { /* table of contents label */
    font-size: 2em;
    margin-bottom: 0px;
    padding-left: 0px;
}

.toc2 { /* table of contents for an h2 */
    font-size: 1.8em;
    padding-left: 24px;
    text-indent: -20px;
}

.toc3 { /* table of contents for an h3 */
    font-size: 1.5em;
    padding-left: 36px;
    text-indent: -20px;
}

.toc4 { /* table of contents for an h4 */
    font-size: 1.3em;
    padding-left: 55px;
    text-indent: -20px;
}

img {
    margin-left: auto;
    margin-right: auto;
    border: 1px solid black;
    text-align: center;
    margin-top: 15px;
    margin-bottom: 15px;
    padding: 0px;
    display: block;
}

.image_info_800, .image_info_600 { /*should fit images ___ pixels wide*/
    font-size: .9em;
    margin-left: auto;
    margin-right: auto;
    margin-top: 0px;
    margin-bottom: 20px;
    padding: 0px;
}

.image_info_800 {
    max-width: 800px;
}

.image_info_600 {
    max-width: 600px;
}

div#references_div p {
    margin-left: 0px;
    padding-left: 0px;
    padding-left: 60px;
    text-indent: -60px;
}

.text_selection {
    padding: 5px;
    margin: 5px;
    border: 2px solid gray;
    font-weight: bold;
    cursor: pointer;
}

#text_small {
    font-size: small;
}

#text_medium { /* default */
    font-size: medium;
}

#text_x-large {
    font-size: x-large;
}

#text_xx-large {
    font-size: xx-large;
}