body {
  margin: 0px;
  color: #333;
  font-size: 82%;
  font-family: Verdana, Arial, Helvetica, sans-serif;
}

:link {
  color: #00c;
}
:link:hover, :visited:hover {
  color: #c00;
}
:link:visited {
  color: #551A8B;
}

acronym, abbr {
  border-bottom: 1px dotted;
}

hr {
  display: none;
}
#content hr {
  display: block;
}

h1, h2, h3, h4, h5, h6, p, ul, ol, blockquote, table {
  margin: 1em 0;
}

li {
  margin-left: 2em;
}

li.column, li.grid, li.container {
	list-style:none;
	margin-left:0;
}


h1, h2, h3, h4, h5, h6 {
  color: #000;
}

h1 {
  font-size: 1.85em;
  margin: .75em 0 .25em 0;
  line-height: 1;
}
h2 {
  font-size: 1.5em;
}
h3 {
  font-size: 1.4em;
}
h4 {
  font-size: 1.25em;
}
h5 {
  font-size: 1.1em;
}
h6 {
  font-size: 1em;
}

.invisiblelink {
  display: none;
}

/* adds exit icon to offsite links */

.offsite:hover:after, a:not([href*=".usgs.gov"]):not([href*="www.doi.gov"])[href^="http"]:hover:after {
	position: absolute;
	content: url("/images/small_offsite_arrow.gif");
	margin-left: 2px;
}

/* Grid system: columns / left, right, center alignment
------------------------------------------------------------------------- */

.column {
	float: left;
	margin: 0 16px 0 0;
}

/* Grid container can contain nested columns */
.grid, .container {
	margin-right:0;
}

/* Non-column children also need right margin to align. */
.grid > *, .container > * {
	margin-right:16px;
}

.grid > .grid, .container > .container {
	margin-right:0;
}

.one    {width: 64px;}
.two    {width: 144px;}
.three  {width: 224px;}
.four   {width: 304px;} 
.five   {width: 384px;} 
.six    {width: 464px;} 
.seven  {width: 544px;} 
.eight  {width: 624px;} 
.nine   {width: 704px;} 
.ten    {width: 784px;} 
.eleven {width: 864px;} 
.twelve {width: 944px;} 

/**
 * 01/13/10 -- EMM: Added single-selected classes for the container/grid options
 * to extend the width to the full column width (since margin is removed). The
 * purpose of this rule is to standardize the way we create column container
 * classes since the '.this.that' selector is not appropriate per CSS specs.
 *
 * To properly create a container/grid object one should now use the class value
 * of:
 *
 * class="column container contains-<width>"
 *
 * Where <width> is one of the numeric values (one - twelve) indicating how many
 * columns this container may contain. It is now deprecated to use the old style
 * of selected to achieve this result: e.g.
 *
 * class="<width> column container" -- deprecated
 * class="<width> column grid"      -- deprecated
 *
 * These selectors remain available for backward compatibility reasons.
 */
.grid.one,    .container.one,    .contains-one    {width:80px;}
.grid.two,    .container.two,    .contains-two    {width:160px;}
.grid.three,  .container.three,  .contains-three  {width:240px;}
.grid.four,   .container.four,   .contains-four   {width:320px;}
.grid.five,   .container.five,   .contains-five   {width:400px;}
.grid.six,    .container.six,    .contains-six    {width:480px;}
.grid.seven,  .container.seven,  .contains-seven  {width:560px;}
.grid.eight,  .container.eight,  .contains-eight  {width:640px;}
.grid.nine,   .container.nine,   .contains-nine   {width:720px;}
.grid.ten,    .container.ten,    .contains-ten    {width:800px;}
.grid.eleven, .container.eleven, .contains-eleven {width:880px;}
.grid.twelve, .container.twelve, .contains-twelve {width:960px;}

.center, .left, .right,
.align-center, .align-left, .align-right {
  display: block;
}
.center, .align-center {
  margin: 0 auto 1em auto;
}
.left, .align-left {
  float: left;
}
.right, .align-right {
  float: right;
}

.align-right, img.right {
	margin: 4px 16px 1em 16px;
}

.column .align-right {
  margin-right: 0;
}

.align-left, img.left {
	margin: 4px 16px 1em 0;
}

.align-center, .align-left, .align-right {
  margin-top: .75em;
}
.align-center p, .align-left p, .align-right p {
  margin-top: .4em;
}

@media print { .noprint, .noprint * {display:none !important;} }
@media screen { .noscreen, .noscreen * {display:none !important;} }


/* Header section
------------------------------------------------------------------------- */

#usgsbanner {
  background: #000;
}
#usgsbanner div {
  background: #000 url(/template/images/header.png) 179px 0px no-repeat;
  margin: 0 auto;
  width: 960px;
  padding-left: 16px;
  height: 72px;	
}
#usgsbanner img {
  margin-left:-3px;
/*  margin: 8px 0 0 2px; */
  display:block;
  float:left;
}
#usgsbanner ul {
  float: right;
  width: 160px;
  list-style: none;
  padding-top: 5px;
  margin:0;
}
#usgsbanner ul li {
	margin:0;
}
#usgsbanner ul a {
  color: #fff;
  font-weight: bold;
  text-decoration: none;
}
#usgsbanner ul a:hover {
  text-decoration: underline;
}

#usgstitle {
  background: #58789d url(/template/images/bg_usgstitle.gif) repeat-x 0 0; 
  border-top: 1px solid #fff; 
  font-size: 14px;
  color: #fff;
} 
#usgstitle div {
  background: #58789d url(/template/images/bg_usgstitle.gif) repeat-x 0 0;
  width: 960px;
  margin: 0 auto;
  overflow: hidden;
  padding-left: 16px;
}
#usgstitle p {
  font-weight: bold;
  font-size: 1.2em;
  line-height: normal;
  padding: 5px 0;
  margin:0;
  float: left;
}

#usgstitle p a {
  color:#fff;
  text-decoration:none;
}

#usgstitle p a:hover {
	text-decoration:underline;
}

/* Nav: EHP links, search
------------------------------------------------------------------------- */

#utilities {
  padding: 2px 0;
  float: right;
  font-size: .85em;
  line-height: 1.5em;
  color: #fff;
  margin:0;
  width:auto;
}
#utilities li {
  float: left;
  list-style-type: none;
  margin: 0 30px 0 0;
}
#utilities li a, #utilities li a:visited {
  margin-top: 5px;
  display: block;
  color: #e9f2f5;
  text-decoration: none;
}
#utilities li strong a, #utilities li strong a:visited {
  color: #fff;
}
#utilities li a:hover {
  text-decoration: underline;
}

#search {
  position: relative;
  top: 5px;
  right: -14px;
}
#search form .search-wrap {
  display: block;
  width: 224px;
  height: 18px;
  background: url(/template/images/sbox_left-trans.gif) no-repeat scroll left top;
}
#search form .search-wrap .search-text {
  position: absolute;
  top: 0px;
  left: 22px;
  margin: 0;
  padding: 3px 2px 0 2px;
  width: 150px;
  height: 18px;
  background: url(/template/images/sbox_interior.gif) repeat-x scroll center top;
  border: 0;
  font-size: 11px;
  font-size-adjust: none;
  line-height: 18px;
}
#search form .search-wrap .search-button {
  position: relative;
  left: 176px;
}


/* Nav: main sections (top)
------------------------------------------------------------------------- */

#sitenav {
  clear: both;
  text-transform: uppercase;
  background: #C9D8E9 url(/template/images/bg-sitenav2.gif) repeat-x left -6px;
  border-top: 1px solid #fff;
  /*text-shadow : 2px 2px 2px #E1EAF2; **Causes scrollbars in FF 3.5?? */
}
#sitenav ul {
  background: #C9D8E9 url(/template/images/bg-sitenav2.gif) repeat-x left -6px;
  width: 960px;
  margin: 0 auto;
  padding-left: 16px;
  overflow: hidden;
  list-style: none;
}

#sitenav li {
	margin: 0;
	float: left;
}

#sitenav a {
  padding: 5px 0 3px 0px;
  margin-right: 16px;
  display: block;
  font-weight: bold;
  color: #132840;
  width: 144px;
  text-decoration: none;
  border-bottom: 3px solid #C9D8E9;
}
#sitenav strong a {
  color: #333;
  border-bottom: 3px solid #333;
}
#sitenav a:hover, #sitenav a.hover {
  color: #000;
  border-bottom: 3px solid #000;
}


/* Nav: main sections / sub-sections (bottom)
------------------------------------------------------------------------- */

#sitemap {
  clear: both;
  margin: 1.8em 0 0;
  background: #EFF5FB;
  border-top: 1px dotted #DDDDDD;
}
#sitemap ul {
  background: #EFF5FB;
  width: 960px;
  margin: 0 auto;
  padding: 1.5em 0 1.5em 16px;
  overflow: hidden;
}
#sitemap ul li {
  width: 144px;
  float: left;
  margin:0 16px 0 0;
  list-style: none;
}
#sitemap ul ul {
  float: left;
  padding: 0;
  width: 144px;
  margin-top: 1px;
}
#sitemap ul a {
  display: block;
  text-transform: uppercase;
  font-size: .9em;
  font-weight: bold;
  text-decoration: none;
  color: #2A4B71;
  border-bottom: 1px solid #ddd;
  padding-bottom: 1px;
  line-height: 1.4;
}
#sitemap ul a:hover {
  color: #000;
  border-bottom-color: #666
}
#sitemap ul ul a {
  color: #2A4B71;
  text-transform: none;
  font-weight: normal;
  border-bottom: 1px dotted #ddd;
  padding: 3px 0;
  font-size: .85em;
}
#sitemap ul ul a:hover {
  background: #E4EDF8;
  border-color: #ddd;
  color: #000;
}


/* Content area
------------------------------------------------------------------------- */

#content {
  clear: both;
  width: 960px;
  margin: .7em auto 1.8em;
  padding-left: 16px;
  overflow: visible;
  font-family: Helvetica;
}

#content > p, #main > p {
	margin-right:16px;
}

#content > .grid, #main > .grid, #content > .container, #main > .container {
	margin-right:0;
}

#main {
  float: right;
  width: 800px;
  margin-right:0;
  margin-bottom:1.8em;
}


/* Nav: sub-sections (sidebar)
------------------------------------------------------------------------- */

#navigation {
  font-family: Verdana;
  width: 144px;
  float: left;
  margin-top: 0em;
  margin-bottom:1.8em;
}
#navigation hr {
  display: none;
}

#navigation ul {
	width:auto;
}
#navigation ul li {
  width: 144px;
  list-style: none;
  margin: 0;
}
#navigation ul ul {
  margin: 0;
  border-top: 1px solid #999;
  overflow: hidden;
}
#navigation ul a {
  display: block;
  font-size: .9em;
  text-decoration: none;
  color: #111;
  border-bottom: 1px solid #eaeaea;
  padding: .3em 0 1px 0;
  line-height: 1.4;
}
#navigation ul a:hover, #navigation ul strong a.group:hover {
  color: #000;
  background: #e9f1e7;
}
#navigation ul ul a {
  color: #555;
  margin: 0;
  padding: 3px 0 3px 4px;
  font-size: .82em;
  border-bottom-color: #efefef;
}
#navigation ul strong a, #navigation ul strong span {
  color: #000;
  background: #d5eacf;
  font-weight: normal;
  display:block;
}
#navigation ul strong span {
  font-size: .9em;
  padding: 2px 0;
}
#navigation ul strong a.group.childselected, #navigation ul strong span/*.group.childselected*/ {
  background: none;
}


/* Content footer section
------------------------------------------------------------------------- */

/* Content footer is between content and sitemap. */
#content_footer {
  clear: both;
}

#content_footer > * {
	width: 960px;
	margin: 0 auto -.3em;
	padding: 1.8em 0 0 16px;
	overflow: visible;
	font-family: Helvetica;
}

#share {
  overflow: hidden;
}
#share p, #share a {
  line-height: 1.3em;
}
#share p {
  float: left;
  margin: 0 8px 0 0;
}
#share ul {
  float: left;
  list-style: none;
  margin: 0;
}
#share li {
  float: left;
  margin: 0 16px 0 0;
}
#share a {
  background: url('/template/images/icons-sprite.png') no-repeat;
  display: block;
  height: 16px;
  padding-left: 20px;
  outline: 0;
}
#share .facebook a {
  background-position: 0 -32px;
}
#share .twitter a {
  background-position: 0 -80px;
}
#share .googlemarks a {
  background-position: 0 -128px;
}
#share .stumbleupon a {
  background-position: 0 -224px;
}
#share .delicious a {
  background-position: 0 -176px;
}
#share .digg a {
  background-position: 0 -320px;
}
#share .email a {
  background-position: 0 -368px;
}
#share .googlereader a {
  background-position: 0 -656px;
}
#share .yahoobuzz a {
  background-position: 0 -752px;
}
#share .messenger a {
  background-position: 0 -272px;
}

/* Footer section
------------------------------------------------------------------------- */

#usgsnav {
  background: #999;
  clear: both;
  border-top:1px solid #ffffff;
}
#usgsnav ul {
  background: #999;
  width: 960px;
  margin: 0 auto;
  list-style: none;
  padding-left: 16px;
  position: relative;
}
#usgsnav ul:after { /* clear float */
  content: ".";
  display: block;
  height: 0;
  clear: both;
  visibility: hidden;
}
#usgsnav li {
  float: left;
  margin:0;
}
#usgsnav li a {
  width: 144px;
  margin-right: 16px;
  display: block;
  color: #fff;
  text-decoration: none;
  padding: 3px 0;
}
#usgsnav li a:hover {
  text-decoration: underline;
}
#usgsnav li a.nehrp {
  margin-left: 160px;
  padding-top: 5px;
  font-size: .75em;
}
#usgsnav li a.nehrp .e {
  color: #900;
}

.usagov, .takepride {
  position: absolute;
  top: 2.5em;
  float: none;
}
#usgsnav li a.usagov {
  right: 55px;
  width: 90px;
}
#usgsnav li a.takepride {
  right: -8px;
  width: 60px;
}
#footer {
  clear: both;
  background: #fff url(/template/images/bg-footer.jpg) repeat-x 0 -40px;
}
#footer p {
  width: 960px;
  margin: 0 auto;
  padding: 6px 0 6px 16px;
}
#usgsnav a:hover:after {
	content: none;
}

/* Tabbed sections
------------------------------------------------------------------------- */

#sections {
  font: 1em "Lucida Grande", Verdana, sans-serif;
  line-height: normal;
  position: relative;
  height: 30px;
  border-bottom: 1px solid #999;
  margin-bottom: 15px;
}
#sections ul {
  margin: 0;
  padding: 0;
  position: absolute;
  bottom: 0;
  left: 15px;
  margin-bottom: -1px;
}
#sections ul li {
  display: inline;
  margin: 0;
  padding: 0;
}
#sections ul li#back {
  margin-left: 2em;
}
#sections li#back a {
  background: none;
  padding: 0;
  float: none;
}
#sections a {
  float: left;
  margin: 0;
  padding: 0 0 0 10px;
  text-decoration: none;
  background: url(/images/tabs/tabs-left.gif) no-repeat left top;
  color: #444;
}
#sections a span {
  float: left;
  display: block;
  padding: 4px 10px 3px 0;
  margin: 0;
  background: url(/images/tabs/tabs-right.gif) no-repeat right top;
  cursor: pointer; /* for IE */
}
#sections li.selected a {
  background-position: 0 -150px;
  border-width: 0;
  color: #222;
  font-weight: bold;
}
#sections li.selected a span {
  background-position: 100% -150px;
}
#sections a:hover, #sections li.selected  a:hover {
  color: #000;
}

/* Other stuff
------------------------------------------------------------------------- */

/* Tabular data tables */

table.tabular {
  margin: 0 0 1em 0;
}
table.tabular th, table.tabular td {
  padding: 3px 10px;
  border: 1px solid #fff;
}
table.tabular th {
  text-align: left;
  background-color: #ccc;
  font-weight: bold;
}
table.tabular td {
  background-color: #eee;
}

/* bibliography-style indents */

ul.referencelist li {
  padding: 0 0 0 3em;
  margin: 1.25em 0;
  text-indent: -3em;
  list-style: none;
  line-height: 1.4em;
}

ul.referencelist li p.note {
  margin: 1em 1.5em 0 0;
	border: 1px solid #fff;
	padding: 0;
	text-indent: 0;
	color: #555;
	font-size: .85em;
}

/* "jumplist" navigation links */

#nav-alpha, .jumplist {
  background: #eee;
  padding: .6em 10px;
  margin: 1.5em 16px 1.5em 0;
  border: 1px solid #ccc;
  font-size: 1.2em;
}

/* Disclaimer text */

#footer .disclaimer {
	display:block;
	width: 960px;
	margin: 0 auto;
	padding: 6px 0 6px 16px;
	color:#000;
}

.disclaimer {
  font-size: .85em;
  color: #999;
}

.date {
	font-size:.9em;
	color: #777;
	font-family: Georgia, Times, serif;
	font-style: normal;
}

.column h2, h2.section, h3.section {
  clear: both;
  padding: 3px 6px 2px;
  font-size: 15px;
  font-weight: bold;
  background: #EBEAE3 url(/template/images/bg-headers3.gif) repeat-x left -5px;
  color: #3A2F20;
}

.column h2 a, h2.section a, h3.section a,
.column h2 a:hover, h2.section a:hover, h3.section a:hover { 
	display:block;
	color:#3A2F20;
	text-decoration:none;
}

.clear {
  clear: both;
}

.addthis_button img {
  margin-top: 1em;
}