* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}

html,
body {
	width: 100%;
	height: 100%;
	background-color: #d1d5db;
	display: flex;
	align-items: center;
	justify-content: center;
}

.bg {
	/* width: 100%; */
	/* height: 10%; */
	position: absolute;
}
.bg p {
	position: fixed;
	font-family: "Oswald", sans-serif;
	left: 0%;
	top: 0%;
	color: rgb(0, 0, 0);
	font-size: 8vh;
	outline: 0;
	height: 100%;
}

.calculator {
	background-color: #1f2937;
	padding: 20px;
	border-radius: 15px;
	position: relative;
}

.calculator form input {
	border: 0;
	outline: 0;
	padding: 15px;
	margin: 5px;
	width: 60px;
	height: 60px;
	border-radius: 10px;
	background-color: #0a0a0a;
	color: beige;
	font-size: 19px;
}

.btn:active {
	background-color: #247bf5;
}

.calculator .display {
	display: flex;
	justify-content: flex-end;
	margin: 20px 0;
}

.calculator .display input {
	text-align: right;
	flex: 1;
	font-size: 45px;
}
form input.equal {
	height: 130px;
	position: absolute;
}