@charset utf-8;

/*	Resets
	------	*/

html,body,div,span,object,iframe,h1,h2,h3,h4,h5,h6,p,blockquote,pre,a,abbr,address,cite,code,del,dfn,em,img,ins,kbd,q,samp,small,strong,sub,sup,var,b,i,dl,dt,dd,ol,ul,li,fieldset,form,label,legend,table,caption,tbody,tfoot,thead,tr,th,td,article,aside,canvas,details,figure,figcaption,hgroup,menu,header,footer,nav,section,summary,time,mark,audio,video{margin:0;padding:0;border:0}article,aside,canvas,figure,figure img,figcaption,hgroup,footer,header,nav,section,audio,video{display:block}a img{border:0}figure{position:relative}
article,aside,details,figcaption,figure,footer,header,hgroup,nav, section,audio,canvas,video{display: block;}

html {
	height: 100%; 
	-webkit-text-size-adjust: 100%; 
	-ms-text-size-adjust: 100%;
}

body {min-height: 100%;}
body.ie6 * {zoom: 1;}


/*	Typography presets
	------------------	*/

.small, #footer {
	font-size: .9em;
}

em,
i{
	font-style: italic;
}
cite {
	font-style: normal;
}

sup, sub {
	font-size: 85%;
	line-height: 0;
}

sup {
	vertical-align: super;
}

sub {
	position: relative;
	bottom: -0.6ex;
}

pre {
	white-space: pre; 
	white-space: pre-wrap; 
	word-wrap: break-word;
}

b, strong {font-weight: bold;}

del {
	text-decoration: line-through;
}

.hidden {
	position: absolute;
	left: -999em;
}


/*	Section Headings, per http://www.nature.com/view/styles/global.page.css
	------------------	*/
	
dl.norm dd {
	margin-left: 40px;
}

h1,
.primary-heading,
.secondary-heading {
	font-size: 2em;
	margin-top: 12px;
	margin-bottom: 6px;
}

.primary-heading {
	margin-top: 4px;
}

h1.secondary-heading {
	border-bottom: solid 1px #B7B7B7;
}

h2.secondary-heading {
	text-transform: none;
}

.secondary-heading {
	font-size: 1.75em;
	padding-top: 12px;
	font-weight: normal;
}

#content .secondary-heading {
	font-size: 1.4em;
}

.single-threads h1.section-heading {
	font-size: 116%;
	margin-bottom: 0;
	padding: 12px 0 5px;
}

.single-threads ul.authors {
	margin-bottom: 5px;
}

h3, #content h1.teaser-title, #content h2.teaser-title {
	font-weight: bold;
	font-size: 13px;
	line-height: 1.231em;
}

#content .teasers article hgroup h2 {
	margin: 0 0 5px;
	font-size: 0.8em;
}

#content .teasers article hgroup h2, #content .teasers article hgroup h2 a {
	color: #494949;
}

#extranav h1 {
	font-size: 1.5em;
}

/*	Links & Images
	------------------	*/

a { text-decoration: none; }

a:hover, a:focus, a:hover *, a:focus * { text-decoration: underline; }

button { cursor: pointer; }

::selection {
	background: #c6d8cd;
}
::-moz-selection {
	background: #c6d8cd;
}
img::selection {
	background: transparent;
}
img::-moz-selection {
	background: transparent;
}

a img, img {
	-ms-interpolation-mode: bicubic;
	border: 0;
}

/*	Tables & Forms
	------------------	*/

table {
    border-collapse: collapse;
    border-spacing: 0;
}

input, textarea, button, select {
	margin: 0;
	font-size: 100%;
	line-height: normal;
	vertical-align: baseline;
}

	button,
	html input[type="button"], 
	input[type="reset"], 
	input[type="submit"] {
	    cursor: pointer;
	    -webkit-appearance: button;
	}

	input[type="checkbox"],
	input[type="radio"] {
		-webkit-box-sizing: border-box;
		   -moz-box-sizing: border-box;
			 -o-box-sizing: border-box;
			-ms-box-sizing: border-box;
				box-sizing: border-box;
	}

	textarea {overflow: auto;}


/*	Lists
	------------------	*/
	
ol {
	padding-left: 2em;
}

ol>li {
	list-style: decimal;
}


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

body {
	-webkit-tap-highlight-color: rgba(147,202,147, 0.6);
}

p { 
	margin-bottom: 1em; 
}