body {
    margin: auto;
    padding-right: 1em;
    padding-left: 1em;
    max-width: 44em;
    border-left: 1px solid black;
    border-right: 1px solid black;
    border-top: 1px solid black;
    border-bottom: 1px solid black;
    color: black;
    font-family: Helvetica, sans-serif;
    font-size: 100%;
    line-height: 140%;
    color: #333; 
}

pre {
    border: 1px dotted gray;
    background-color: #ececec;
    color: #1111111;
    padding: 0.5em;
}
code {
    font-family: monospace;
}
h1 a, h2 a, h3 a, h4 a, h5 a { 
    text-decoration: none;
    color: #7a5ada; 
}
h1, h2, h3, h4, h5 { font-family: Helvetica;
                     font-weight: bold;
                     /*color: #7a5ada; }*/
		     color: black; }
h1 {
        font-size: 130%;
        /*border-bottom: 1px solid lightgray;*/
}

h2 {
        font-size: 110%;
        border-bottom: 1px solid lightgray;
}

h3 {
        font-size: 95%;
}

h4 {
        font-size: 90%;
        font-style: italic;
}

h5 {
        font-size: 90%;
        font-style: italic;
}

h1.title {
        font-size: 150%;
        font-weight: bold;
        padding-top: 0.2em;
        padding-bottom: 0.2em;
        text-align: left;
        border: none;
}

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

ul.nav {
	list-style-type: none;
  	margin: 0;
  	padding: 0;
  	overflow: hidden;
  	background-color: lightgray;
  	position: -webkit-sticky; /* Safari */
  	position: sticky;
  	top: 0;
}

li.nav {
  float: left;
  padding-right: 0;
  padding-left: 0;
}

li.nav a {
  display: block;
  color: black;
  text-align: center;
  padding-top: 5px;
  padding-right:  14px;
  padding-bottom:  5px;
  padding-left: 14px;
  text-decoration: none;
}

li.nav a:hover {
  background-color: gray;
  /*padding-left: 14px;
  padding-right: 14px;*/
}

li.nav .active {
  background-color: black;
  color:white;
  font-weight:bold;
}

@media screen and (max-width: 600px) {
  ul.nav li {float: none;}
  /*li.nav {padding-right: 0px;}
  li.nav a {padding-right: 14px; padding-top: 10px; padding-bottom:10px}*/
}


table, th, td {
  border: 1px solid black;
  border-collapse: collapse;
  padding: 7px;
}

th {
  background-color: grey;
  color: white;
}

tr:nth-child(even) {
  background-color: #dddddd;
}

table {
  max-width: 96%;
  margin-left:2%;
  margin-right:2%;
}

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