@media only screen
and (device-aspect-ratio: 40/71) {
	.container {
		height: 50%;
	}
	.calculator {
		height: 75%;
		margin: 10% 0 2% 25%;
		padding: 0;
		width: 100%;
	}

	.wrapper {
		background: gray;
		border: 1px solid black;
		margin: 0 20% 0 0;
		padding: 0;
		width: 35.5%;
		text-align: right;
	}
	h1 {
		margin: 5% 0 0 12%;
		width: 40%;
	}

	#screen {
		/*border: 2px solid black;*/
		/*margin: 0 10px 0 0;*/
		/*padding: 10px 80px;*/
		margin: 2% 22% 0 0;
		padding: 2% 1% 2% 25%;
	}
}

body {
	background: lightblue;
	font-size: 36px;
	padding: 0;
	height: 100%;
}

.nav {
  font-size: .5em;
}

.navbar-brand {
  font-size: .5em;
}


.container {
	height: 80%;
}
.calculator {
	height: 75%;
	margin: 10% 0 2% 25%;
	padding: 0;
	width: 100%;
}


.wrapper {
	background: gray;
	border: 10px solid black;
	margin: 0 20% 0 0;
	padding: 0;
	width: 35.5%;
	text-align: right;
}

h1 {
	margin: 5% 0 0 12%;
	width: 27.5%;
}

#screen {
	/*border: 2px solid black;*/
	/*margin: 0 10px 0 0;*/
	/*padding: 10px 80px;*/
	margin: 2% 22% 0 0;
	padding: 2% 1% 2% 25%;
}

.keys {
	background: gray;
	float: left;
	font-size: 3rem;
	padding: 1% 2% 1% 2%;
	text-align: center;
	width: 35.5%;
}

.keys span {
	border: 1px solid black;
	width: 20%;
	float: left;
	padding: 5%;
}

.keys span:hover {
	background: red;
}

span button {
	width: 100%;
	float: left;
}

#seven, #four, #one, #zero {
	clear: left;
}

nav {
	display: flex;
	flex-direction: row;
	justify-content: space-between;
	flex-wrap: wrap;
}

.fixed {
	position: fixed;
	top: 0;
	right: 0;
	left: 0;
	z-index: 1000;
	width: 100%;
	height: 10%;
	background-color: black;
}

nav ul {
	margin: 1% 0 0 0;
}

nav ul li {
	list-style: none;
}

nav > ul > li {
	color: white;
	font-size: 24px;
}

.left {
	display: flex;
	flex-direction: row;
	width: 25%;
}

.left > li {
	padding: 2% 0 0 0;
}

.left > li:last-child {
	margin-left: 8%;
}

.right > li {
	 padding: 2% 15% 0 0;
}

a {
	color: white;
	text-decoration: none;
}

a:hover {
	color: white;
	text-decoration: none;
}

.hamburger {
	display: none;
	cursor: pointer;
}

.dropdown {
	display: flex;
	flex-direction: row;
	justify-content: flex-end;
	width: 30%;
}

@media screen and (max-width: 920px) {
	nav {
		justify-content: center;
	}

	.left {
		display: none;
	}
}

@media screen and (max-width: 640px) {
	.left {
		display: none;
	 }

	.hamburger{
		display: flex;
	  width: 100%;
	  background: black;
	  font-family: 'Open Sans', sans-serif;
		justify-content: center;
	 }

	.navicon{
	  font-size: 25px;
	  margin: 5px 15px;
	  color: seashell;
	 }

	.dropdown{
	  padding-left: 0;
	  margin: 0;
	  list-style: none;
	  display: none;
		width: 100%;
	 }

	.dropdown li{
	  font-size: 24px;
	  padding: 15px;
	  width: 100%;
	  background: black;
	  border-bottom: 1px solid black;
	}

	.dropdown li:last-child{
	  border-bottom: none;
	 }

	.dropdown a:hover{
	  background: black;
	 }
}

/* Mobile Portrait */

@media screen and (device-aspect-ratio: 40/71) and (max-device-width: 640px) {
	.left {
		display: none;
	 }

	.hamburger{
		display: flex;
	  width: 100%;
	  background: black;
	  font-family: 'Open Sans', sans-serif;
		justify-content: center;
	 }

	.navicon{
	  font-size: 25px;
	  margin: 5px 15px;
	  color: seashell;
	 }

	.dropdown{
	  padding-left: 0;
	  margin: 0;
	  list-style: none;
	  display: none;
		width: 100%;
	 }

	.dropdown li{
	  font-size: 24px;
	  padding: 15px;
	  width: 100%;
	  background: black;
	  border-bottom: 1px solid black;
	}

	.dropdown li:last-child{
	  border-bottom: none;
	 }

	.dropdown a:hover{
	  background: black;
	 }
}

/* Mobile Landscape */

@media screen and (device-aspect-ratio: 40/71) and (max-device-width: 640px) {

	.left {
		display: none;
	 }

	.hamburger{
		display: flex;
	  width: 100%;
	  background: black;
	  font-family: 'Open Sans', sans-serif;
		justify-content: center;
	 }

	.navicon{
	  font-size: 25px;
	  margin: 5px 15px;
	  color: seashell;
	 }

	.dropdown{
	  padding-left: 0;
	  margin: 0;
	  list-style: none;
	  display: none;
		width: 100%;
	 }

	.dropdown li{
	  font-size: 24px;
	  padding: 15px;
	  width: 100%;
	  background: black;
	  border-bottom: 1px solid black;
	}

	.dropdown li:last-child{
	  border-bottom: none;
	 }

	.dropdown a:hover{
	  background: black;
	 }
}