img {
    width: 300px;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

body {
    font-family: Arial, sans-serif;
    margin: auto;
    padding: 50px;
    max-width: 1000px;
    line-height: 1.4;
}

h1 {
    text-align: center;
}

a:link, a:visited {
    color: #CC0000;
    text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.week {
  border-top: 1px solid black;
}

th {
  text-align: left;
}

td, th {
    padding: 0.3em;
}

table {
    width: 100%;
    border-top: 1px solid black;
    border-bottom: 1px solid black;
    border-collapse: collapse;
}


/* #table-of-contents { */
/*     position: fixed; */
/*     right: 1.5em; */
/*     top: -0.5em; */
/*     max-height: 100%; */
/*     width: 20em; */
/*     overflow: auto; */
/* } */

/* ul { */
/*     list-style-type: none; */
/*     padding: 5px; */
/*     margin: 5px; */
/* } */

/* @media only screen and (max-width: 1700px) { */
/*     #table-of-contents { */
/*         display: none; */
/*     } */
/* } */

code {
    background-color: #e8e8e8;
}

pre{
    background-color: #e8e8e8;
    padding: 10px;
    display: block;
    overflow: auto;
    line-height: 1.2em;
}