@font-face{
	font-family: 'Calculator';
	src:url('calculator.ttf')  format("truetype");
}

h1{
	text-align: center;
	font-family: 'Calculator', Helvetica, Arial;
	font-size: 400%;
}

#calculadora{
	padding-left:20px;
	padding-top: 20px;
	padding-bottom: 20px;
	width: 800px;
	font-size: medium;
	background-color: #D3D3D3 ;
    margin-left: auto;
    margin-right: auto;
    border-radius: 15px;

}

#num{
	background-color: black;
	color: green;
	font-family: 'Calculator', Helvetica, Arial;
	font-size: 200%;
	padding:4px;
	margin-left: auto;
	margin-right: auto;
}

.boton{
	color:white;
	background-color: black;
	padding: 3px;
	width: 90px;
	height: 40px;
	margin-top: 5px;
}

.boton_resetea{
	color:white;
	background-color: black;
	margin-top: 10px;
	padding: 3px;
	width: 300px;
	height: 40px;
}