body {
	background-color: black;
}
h1 {
	color: white;
	text-align: center;
}
.carcasa {
	width: 400px;
	background-color: lightgrey;
	margin: 0 auto;
	border: 1px solid darkgrey;
	border-radius: 10px;
}
.entrada {
	overflow: hidden;
}
.entrada, .botonera {
	padding: 20px;
	margin: 0 auto;
}
.entrada input {
	width: 100%;
	border: none;
	text-align: right;
	font-size: xx-large;
	margin-bottom: 2px;
}
.entrada input, .botonC {
	float: right;
}
button {
	height: 40px;
	margin-bottom: 4px;
	border-radius: 5px;
	font-weight: bold;
	font-size: x-large;
}
button:hover {
	background-color: darkgrey;
	color: white;
}
.botonNormal {
	width: 87px;
}
.botonDoble {
	width: 178px;
}