body {
  width: 800px;
  margin-left: auto;
  margin-right: auto;
  font-family: Verdana, Helvetica, Arial, Sans-Serif;
  font-size: 0.9em;
}
div.wide {
  width: 1024px;
}
img {
  max-width: 800px;
}
#header {
  border-bottom: solid 1px black;
}
#header img {
  width: 172px;
  margin-right: 20px;
}
#header span {
  font-size: 12pt;
  padding-bottom: 10px;
  font-style: italic;
}
#header a {
  text-decoration: none;
  color: black;
}
.contents {
  border:solid 1px black;
  padding: 10px;
}

/* section headings */
h1 {
  font-size: 16pt;
  text-decoration: underline;
}
h2 {
  font-size: 14pt;
}
h3 {
  font-size: 14pt;
}

/* PHIL formatting */
ul.phil {
  font-family: monospace;
  list-style: none;
  padding-left: 0px;
}
ul.phil ul {
  list-style: none;
}
li.phil-param {
  clear:both;
  padding: 5px;
}
.phil-scope > span {
  font-weight: bold;
}
.phil-words {
  color: red;
}
.phil-help {
  color: blue;
  width: 500px !important;
  float: right;
}

/* Drop-down menu */
#nav {
  background: #052a47;
  list-style: none;
  margin: 0px;
  clear: both;
  width: 100%;
  margin-bottom: 10px;
  padding: 0px;
  float: left;
}
#nav a {
  color: white;
  display: block;
  padding: 6px;
  text-decoration: none;
}
#nav a:hover {
  color: #ccc;
}
#nav > li {
  float: left;
  margin: 0px;
  position: relative;
}
#nav > li > ul {
  display: none;
  position: absolute;
  left: 0px;
  width: 240px;
  padding: 0px;
  list-style: none;
  background: #9ca9b2;
}
#nav > li:hover > ul {
  display: block;
}



.tutorial_td {
  padding-left: 15px;
  padding-right: 15px;
}

.tutorial_btnimg {
  width: 120px;
  height: 112px;
}

.tutorial_text {
  padding-top: 40px;
  padding-bottom: 40px;
  font-size: 16px;
  line-height: 1.5;
  max-width: 800px;
  margin: 0 auto;
}

.tutorial_container{
  max-width: 800px;
  margin: 0 auto;
  padding-bottom: 40px;
  }

.tutorial_accordion {
    color: #444;
    cursor: pointer;
    padding: 5px;
    margin: 50 auto;
    width: 100%;
    border: none;
    text-align: center;
    vertical-align: middle;
    outline: none;
    font-size: 20px;
    font-weight: bold;
    transition: 0.4s;
}

.tutorial_color1 {
  background-color: #87CEFA;
}
.tutorial_color2 {
  background-color: #FFA07A;
}
.tutorial_color3 {
  background-color: #90EE90;
}
.tutorial_color4 {
  background-color: #D8BFD8;
}

.active.tutorial_color1, .accordion.tutorial_color1:hover {
    background-color: #00BFFF;
}
.active.tutorial_color2, .accordion.tutorial_color2:hover {
    background-color: #E9967A;
}
.active.tutorial_color3, .accordion.tutorial_color3:hover {
    background-color: #66CDAA;
}
.active.tutorial_color4, .accordion.tutorial_color4:hover {
    background-color: #DB7093;
}

.tutorial_panel {
    padding: 0 18px;
    margin-left: 0px;
    background-color:#f6f6f6;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.2s ease-out;
}