/* isim.css */

body {
	background-color: LightGrey;
	font-family: Helvetica, sans-serif;
	font-size: 16px;
	line-height: 1.2;
	margin: 0.5em;
}

#main_content {
	max-width: 960px;
	margin: auto;
	background-color: White;
}

a:link, a:active, a:visited {
	color: Crimson;
	text-decoration: none;
}
a:hover {
	color: Navy;
	text-decoration: none;
}

h1, h2, h3, h4, h5, h6 {
	margin: 0.25em 0 0 0;
	font-weight: normal;
	font-family: Helvetica, sans-serif;
}
h1 {
	font-size: 2em; /*32px*/
}
h2, h3  {
	font-size: 1.5em; /*24px*/
}

p {
	margin: 0.5em 0 0 0;
}

ul {
	padding-left: 1em;
}
li {
	margin-left: 1em;
	list-style-type: square;
}

.accentuate {
	color: Crimson;
}

.accentuate a:link, .accentuate a:active, .accentuate a:visited {
	color: Teal;
}
.accentuate a:hover {
	color: Navy;
}

.small-print {
	font-size: smaller;
}

#header {
	background-image: url('../images/nasa1.png');
	background-position: right;
	background-repeat: no-repeat;
	margin: 0;
	padding: 0.5em;
}
#header img {
	float: left;
	margin-right: 1em;
}

#header h1 {
	font-size: 2.5em; /*40px*/
	color: Teal;
	font-weight: bold;
	max-width: 90%;
}
@media screen and (max-width: 960px) {
	#header h1 {
		font-size: 4.167vw; /*~40px*/
	}
}
@media screen and (max-width: 576px) {
	#header h1 {
		font-size: 1.5em; /*24px*/
	}
}
#header h2 {
	font-size: 2em;
	color: Teal;
	font-weight: bold;
	max-width: 90%;
	margin: 0;
}
@media screen and (max-width: 960px) {
	#header h2 {
		font-size: 3.4vw;
	}
}
@media screen and (max-width: 576px) {
	#header h2 {
		font-size: 1.2em;
	}
}
#header_end_float {
	clear: both;
}

.nav-menu {
	margin-left: 0.5em;
}
.nav-menu a {
	background-color: Teal;
	padding: 0.25em 0.1em 0.1em 0.1em;
	display: inline-block;
	border-style: solid;
	border-width: 0px;
	border-radius: 5px;
	margin-bottom: 0.15em;
	min-width: 5em;
	text-align: center;
}
.nav-menu .highlight1 {
	background-color: Crimson;
}
.nav-menu a.inactive {
	pointer-events: none;
}
.nav-menu a:link, .nav-menu a:active, .nav-menu a:visited {
	color: White;
}
.nav-menu a:hover {
	background-color: Crimson;
}

.heading {
	width: 100%;
	height: 1.4em;
	background-color: Teal;
	color: White;
	border-style: solid;
	border-width: 0px;
	border-top-right-radius: 2em;
	border-top-left-radius: 5px;
	border-bottom-left-radius: 5px;
}

.breadcrumbs {
	padding: 0.2em 0 0 0.5em;
	margin: 0;
}
.breadcrumbs a:link, .breadcrumbs a:visited, .breadcrumbs a:active {
	color: White;
}
.breadcrumbs a:hover {
	color: White;
	background-color: Crimson;
}

td {
	padding: 0.25em;
	vertical-align: top;
}

hr {
	border: 1px;
	border-style: solid;
	margin: 0.5em 0 0.5em 0;
}

.container {
	margin: 0.5em;
}

.std-height {
	background-repeat: no-repeat;
	background-size: 100% 100%;
	height: 11em;
}

.short {
	width: 250px;
	height: 150px;
	border-style: none;
	float: left;
	margin-top: 0.5em;
	margin-bottom: 0;
	background-position: right;
	background-repeat: no-repeat;
}

.short img {
	float: right;
	height: 100%;
}

#footer {
	color: Teal;
	text-align: center;
	border-width: 3px;
	border-style: solid none none none;
	padding-bottom: 0.25em;
}

.insecure {
	border-color: Crimson;
	border-style: solid;
	border-width: 0.75em;
	padding: 0.25em;
	overflow: hidden;
}

.help_page img {
	max-width: 100%;
	max-height: 100%;
}

.nextprev {
	padding: 0.5em;
}