body {
	margin: 0;
	padding: 0;
	font: normal normal 18px 'Ubuntu',sans-serif;
	color: #333;
	text-align: center;
}
h1,h2,p { margin: 0; padding: 0; }
h1 {
	font-size: 2em;
	line-height: 1.5em;
	padding: 27px 0;
	background: #f2f2f2;
	border-bottom: 1px solid #ccc;
}
h2 {
	font-size: 1.5em;
	line-height: 2em;
	margin-bottom: 1em;
}
section {
	display: block;
	margin: 3em 0;
}
a.button {
	display: block;
	width: 66%;
	max-width: 640px;
	min-width: 480px;
	margin: 0 auto;
	border: 1px solid #ccc;
	border-radius: .5em;
	line-height: 1.25em;
	padding: 18px;
	color: #333;
	font-family: 'Nunito',sans-serif;
	font-weight: 400;
	text-decoration: none;
	
	background: rgb(248,255,232); /* Old browsers */
	/* IE9 SVG, needs conditional override of 'filter' to 'none' */
	background: url(data:image/svg+xml;base64,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);
	background: -moz-linear-gradient(top, rgba(248,255,232,1) 0%, rgba(227,245,171,1) 33%, rgba(183,223,45,1) 100%); /* FF3.6+ */
	background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,rgba(248,255,232,1)), color-stop(33%,rgba(227,245,171,1)), color-stop(100%,rgba(183,223,45,1))); /* Chrome,Safari4+ */
	background: -webkit-linear-gradient(top, rgba(248,255,232,1) 0%,rgba(227,245,171,1) 33%,rgba(183,223,45,1) 100%); /* Chrome10+,Safari5.1+ */
	background: -o-linear-gradient(top, rgba(248,255,232,1) 0%,rgba(227,245,171,1) 33%,rgba(183,223,45,1) 100%); /* Opera 11.10+ */
	background: -ms-linear-gradient(top, rgba(248,255,232,1) 0%,rgba(227,245,171,1) 33%,rgba(183,223,45,1) 100%); /* IE10+ */
	background: linear-gradient(to bottom, rgba(248,255,232,1) 0%,rgba(227,245,171,1) 33%,rgba(183,223,45,1) 100%); /* W3C */
	filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#f8ffe8', endColorstr='#b7df2d',GradientType=0 ); /* IE6-8 */
}
.wrap { 
	width: 90%; 
	max-width: 900px;
	overflow: hidden;
	margin: 0 auto;
}

/* tabellengestaltung mathe hilfe */
table.mathe {
	width: 900px;
}
table.mathe td {
	vertical-align: top;
	text-align: left;
}
table.mathe .name,
table.mathe .link {
	width: 15%;
}
table.mathe .desc {
	width: 60%;
}
table.mathe .desc p,
table.mathe .desc table {
	margin-bottom: .75em;
}
table.mathe tr.del td {
	text-decoration: line-through;
}



iframe {
	 border-width:0; 
	 max-width: 900px; 
	 width: 90%; 
	 min-width: 300; 
	 margin: 0 auto;
}
footer {
	background: #000;
	color: #fff;
	padding: 27px 0;
	display: block;
	line-height: 1.5em;
}
footer a {
	text-decoration: none;
	color: #fff;
}