body#bd{background-image: url("../img/slide1.png");}
h1#name{background-color: gray;}
nav.navbar{background-color: blue!important;}
div#calculadora {
	background-color: #aaa;
	padding: 30px;
	margin-top: 12px;
	border: 1px solid #eee;
	border-radius: 16px;
	text-align:center;
}
div#calculadora button {
	background-color: #aaa;
	border: 4px solid #efg;
	font-size: 4rem;
	font-weight: bold;
	margin: 3px;
	
}
div#calculadora button:hover{background-color: #344;color:blue;}