body {
  position: relative;
  /* background-image: url(images/background.gif); */
  background-color: #ffffff;
  margin: 0px 5px 0px 0px;
  /* font-family: sans-serif; */
  font-size: 1em;
  color: black;
  padding: 0px;
}

#content {
  position: relative;
  margin: 0px;
  padding: 0px;
}

#references p {
  text-indent: -30px;
  margin-left: 40px;
}

#continue {
  margin-top: 3em;
  margin-left: 1em;
  margin-right: 1em;
  margin-bottom: 3em;
  border-top-style: solid;
  border-top-color: #101863;
  border-top-width: 1px;
  font-family: sans-serif;
  font-size: .8em;
  font-weight: bold;
  text-align: center;
  color: #101863;
}

#copy {
  font-size: .6em;
  font-family: sans-serif;
  color: black;
  text-align: center;
  margin-top: -2em;
}

p {
  /* margin: 10px 10px 10px 40px; */
  margin: 1em 1em 1em 3em;
}

p.glossary {
  width: 250px;
}

div.experiment, div.quiz, div.activity, div.sitevisit, div.trythis, div.example {
  margin: 30px 5px 30px 10px;
  padding: 0px 0px 0px 0px;
  border-style: solid;
  border-width: 1px;
  border-color: black;
  top: 0px;
  left: 0px;
}

div.exercise {
  background-color: #ffffcc;
  margin: 1em 1em 1em 3em;
  padding: 5px 10px 5px 10px;
  border-style: solid;
  border-width: 1px;
  border-color: black;
  top: 0px;
  left: 0px;
}

div.solution {
  background-color: #ccffcc;
  margin: 1em 1em 1em 3em;
  padding: 5px 10px 5px 10px;
  border-style: solid;
  border-width: 1px;
  border-color: black;
  top: 0px;
  left: 0px;
}

div.summary {
  background-color: #ffffff;
  margin: 1em 5em 1em 8em;
  padding: 5px 10px 5px 10px;
  border-style: solid;
  border-width: 1px;
  border-color: black;
  top: 0px;
  left: 0px;
}

div.note {
  background-color: #ececec;
  margin: 1em 1em 1em 3em;
  padding: 5px 10px 5px 10px;
  border-style: solid;
  border-width: 1px;
  border-color: black;
  top: 0px;
  left: 0px;
}

div.reading {
  background-color: #87ceeb;
  margin: 1em 1em 1em 3em;
  padding: 5px 10px 5px 10px;
  border-style: solid;
  border-width: 1px;
  border-color: black;
  top: 0px;
  left: 0px;
}

div.directions {
  margin-left: 30px;
}

p.note {
  padding: 5px 5px 5px 5px;
  /* background-color: #33FFFF; */
  border-style: solid;
  border-width: 1px;
  border-color: black;
}

p.caption {
  font-style: italic;
  font-family: sans-serif;
  font-size: .8em;
  margin: 0px 0px 20px 80px;
}

p.eq {
  margin: 0em 0em 0em 0em;
  text-align: center;
  padding: 0em 0em 0em 0em;
}

p.eqq {
  font-weight: bold;
  text-align: right;
  color: #101863;
  margin-top: -1em;
}

p.sol_eqq {
  font-weight: bold;
  text-align: right;
  color: #2e8b57;
}

p.fig {
  font-weight: bold;
  text-align: center;
  color: #101863;
  margin: 20px auto 20px auto;
}

p.notice {
  font-weight: bold;
  color: red;
  font-size: 1.0em;
}

p.draft {
  font-style: italic;
  color: gray;
}

p.center {
  margin: 0px;
  padding: 0px;
  text-align: center;
}

p.left {
  margin: 1em 1em 1em 0em;
  padding: 0px;
  text-align: left;
}

ul, ol {
  /* margin: 10px 10px 10px 40px; */
  margin: .2em 1em .2em 3em;
  padding: .2em 1em .2em 3em;
}

li { margin: .7em 0em .7em 0em; }

ul.2, ol.2 {
  /* margin: 10px 10px 10px 40px; */
  margin: .0em 0em .0em 0em;
  padding: .0em 0em .0em 0em;
}

li.2 { margin: .0em 0em .0em 0em; }

ul.3, ol.3 {
  /* margin: 10px 10px 10px 40px; */
  margin: .2em 1em .2em 1.5em;
  padding: .2em 1em .2em 1.5em;
}

li.3 { margin: .4em 0em .4em 0em; }

table {
  margin: 10px 10px 10px 80px;
  text-align: center;
}

table.center {
  margin: 10px auto 10px auto;
}

/* headings */
h1, h2, h3, h4 {
  font-family: sans-serif;
  font-weight: bold;
  color: #101863;
  margin: 0px 0px 0px 0px;
  padding: 8px 0px 5px 10px;
}

h1 {
  font-family: serif;
  font-weight: bold;
  font-size: 1.3em;
  color: #ffffff; /* unique in headers */
  background-color: #663333; /* unique in headers */
  width: 100%;
}

h2 {
  font-size: 1.3em;
}

h2.exercise {
  font-size: 1.3em;
  color: #228b22;
}

h3 {
  font-size: 1.1em;
}

h4 {
  font-size: 1em;
}

img {
  margin: 10px 10px 10px 80px;
}

img.eq {
  display: block;
  margin: 0px auto 0px auto;
}

img.eqq {
  vertical-align: middle;
}

img.fig {
  display: block;
  margin: 0px auto 0px auto;
}

table img {
  margin: 0px 0px 0px 0px;
  border: 0px;
}

p.img {
  margin: 0px 0px 0px 0px;
}

.experiment img, .activity img, .quiz img, .sitevisit img, .trythis img {
  margin: 5px 0px 0px 5px;
}

img.border {
  border-style: solid; 
  border-color: black; 
  border-width: 1px;
}

/* objects */

object {
  margin: 0px 10px 0px 80px;
}

/* tables */

td {
  vertical-align: top;
  text-align: left;
  padding: 3px;
}

td.center {
  vertical-align: top;
  text-align: center;
  padding: 3px;
}

td.right {
  vertical-align: top;
  text-align: right;
  padding: 3px;
}

/* below colors are for L01_III.html */
td.black { background-color: black;  color: #ffffff;}
td.orange { background-color: #ffcfa8;  color: black;}
td.salmon { background-color: #ffa8cc;  color: black;}
td.purple { background-color: #cca8ff;  color: black;}
td.sand { background-color: #ffffcc;  color: black;}
td.skyblue { background-color: #a8ccff;  color: black;}
td.mint { background-color: #a8ffcc;  color: black;}

/* lists */


em.underline {
  text-decoration: underline;
}

p.back {
  margin: 3em 1em 2em 3em;
  text-align: center;
}


table.phil2 {
  margin: 0px auto 0px auto;
  border-collapse: collapse;
  border: 1px solid black;
  font-family: sans-serif;
  font-size: .8em;
  background-color: #ffffff;
}

table.phil2  td{
  text-align: left;
  border: 1px solid black;
  }

table.phil2  th{
  text-align: center;
  border: 1px solid black;
  }

table.phil2r {
  margin: 0px auto 0px auto;
  border-collapse: collapse;
  border: 1px solid black;
  font-family: sans-serif;
  font-size: .8em;
  background-color: #ffffff;
}

table.phil2r  td{
  text-align: right;
  border: 1px solid black;
  }

table.phil2r  th{
  text-align: center;
  border: 1px solid black;
  }

table.phil2c {
  margin: 0px auto 0px auto;
  border-collapse: collapse;
  border: 1px solid black;
  font-family: sans-serif;
  font-size: .8em;
  background-color: #ffffff;
}

table.phil2c  td{
  text-align: center;
  border: 1px solid black;
  }

table.phil2c  th{
  text-align: center;
  border: 1px solid black;
  }

table.phil3 {
  margin: 0px auto 0px auto;
  border-collapse: collapse;
  border: 1px solid black;
  font-family: sans-serif;
  font-size: .8em;
  background-color: #ffffff;
}

table.phil3  td{
  text-align: center;
  vertical-align: middle;
  border: 1px solid black;
  }

table.phil3  th{
  text-align: center;
  border: 1px solid black;
  background-color: #cccccc;
  }

table.phil4 {
  margin: 0px auto 0px auto;
  border: 0px solid black;
  font-family: sans-serif;
  font-size: .8em;
  background-color: #ffffff;
}

table.phil4  td{
  text-align: left;
  border: 0px solid black;
  }

table.phil4  th{
  text-align: center;
  border: 0px solid black;
  }
  
div.equation {
  position:relative;
  border: 1px solid green;
  text-align: center;
}
  
div.equation img {
  position:relative;
  display: inline;
}
  
div.equation p {
}
  
.imgright {
  float: right;
  margin-top: 0px;
  margin-left: 20px;
  margin-bottom: 0px;
  margin-right: 0px;
  background-color: white;
}

.imgright2 {
  float: right;
  margin-top: -10px;
  margin-left: 100px;
  margin-bottom: 10px;
  margin-right: 100px;
  background-color: white;
}

.imgleft {
  float: left;
  margin-top: 0px;
  margin-left: 0px;
  margin-bottom: 0px;
  margin-right: 20px;
  padding-right: 0px;
  background-color: white;
}
  
.imgcenter {
  float: center;
  margin-top: 0px;
  margin-left: 20px;
  margin-bottom: 0px;
  margin-right: 0px;
  background-color: white;
}
  
span.eqq {
  font-family: sans-serif;
}
  
span.eqqq {
  font-family: serif;
}
  
span.sup {
  font-family: sans-serif;
  font-size: .55em;
  vertical-align: .6em;
}
  
sup {
  font-family: sans-serif;
  font-size: .55em;
  vertical-align: .6em;
}
  
span.bump {
  font-size: 1.3em;
}
  
span.sub {
  font-family: sans-serif;
  font-size: .55em;
  vertical-align: -.4em;
}
  
sub {
  font-family: sans-serif;
  font-size: .55em;
  vertical-align: -.4em;
}