#calc {
	/*background:#FFF;*/
	width:200px;
	height:200px;
}

#calculator {
	margin:0 auto;
	border: 1px solid gray;
	width: 130px;
	background:#FFF;
}

#input {
	border: 1px solid;
	height: 20px;
	width: 114px;
	margin: 5px;
	padding: 2px;
	text-align: right;
}

#buttons {
	margin: 5px;
}

button {
	width: 30px;
	height: 30px;
	vertical-align: middle;
}

#botonera.big {
	left:36.9%;
	width:349px;
}

#botonera div {
	display: inline-block;
}

#botonera div:hover {
	cursor: pointer;
}

.area, .volumen {
	border:none;
	height:55px;
	width:188px;
	position:absolute;
	text-align:center;
	font-size:2.5em;
}

.area {
	top:413px;
	right:294px;
}

.volumen {
	top:604px;
	right:294px;
}