html, body {
	margin: 0;
	padding: 0;
	width: 100%;
	height: 100%;
}

body {
	font-family: Verdana, Geneva, sans-serif;
	font-size: 14px;
	line-height: 1.7;
	background-color: #CFF;
}

header {
	margin: 0px 5px 5px 5px;
	width: calc(100% - 25px);
	height: 130px;
	background: linear-gradient(to bottom, #1E9957 0%, #7DE8B9 100%);
	border-radius: 0px 0px 35px 35px;
}

p {
	font-size: 30px;
	color: white;
	letter-spacing: 0px;
}

img, audio, iframe {
	margin: 10px;
	border: 0px;
	box-shadow: 7px 7px 8px 2px grey;
	background-color: white;
}

footer {
	position: relative;
	clear: both;
	width: 100%;
	height: 30px;
	background: linear-gradient(to bottom, #1E9957 0%,#29D889 50%,#20CA7C 51%,#7DE8B9 100%);
}
.pagina {
	height: 100%;
	display: flex;
	flex-flow: column;
}

.pagina > header {
	flex: 1 6 auto;
	order: 1;
}

.pagina > div {
	flex: 1 6 calc(100% - 160px);
	order: 2;
	min-height: 80px;
}

.pagina > footer {
	flex: 1 1 auto;
	order: 3;
	min-height: 15px;
}

.imagencabecera {
	width: 100px;
	height: 100px;
	margin: 15px 15px 0px 0px;
	float: right;
	background-image: url(../objetos/firefox.png);
	background-size: contain;
}

.cabecera {
	padding: 10px;
}

.principal {
	padding: 5px;
	background-color: #CFF;
	background-position: left top;
	background-repeat: repeat;
	overflow-y: scroll;
}

.principal header {
	width: calc(100% - 10px);
	height: 35px;
	padding: 5px;
	font-size: 20px;
	color: white;
	background: linear-gradient(to bottom, #1E9957 0%, #7DE8B9 100%);
	border-radius: 10px 35px 35px 10px;
}

.recursos {
	padding-top: 10px;
	padding-bottom: 0px;
}

.superficie {
	padding: 10px 0px 10px 0px;
}

.pie {
	position: relative;
	top: 50%;
	transform: translateY(-50%);
	font-size: 14px;
	text-align: center;
	letter-spacing: -0.1px;
	color: white;
}