body {
	margin: 0;
	padding: 0;
	color: white;
	text-align: center;
}

.f {
	display: -webkit-box;
	display: -ms-flexbox;
	display: flex;
	-webkit-box-pack: center;
	-ms-flex-pack: center;
	justify-content: center;
	-webkit-box-align: center;
	-ms-flex-align: center;
	align-items: center;
}

.fc {
	-webkit-box-orient: vertical;
	-webkit-box-direction: normal;
	-ms-flex-direction: column;
	flex-direction: column;
}

.fw {
	-ms-flex-wrap: wrap;
	flex-wrap: wrap;
}

.sa {
	-ms-flex-pack: distribute;
	justify-content: space-around;
}

#main {
	width: 100%;
	min-height: 100vh;
	background-color: #333;
}

#alert {
	position: fixed;
	width: 100vw;
	height: 100vh;
	top: -100px;
}

#alert p {
	width: 80%;
	background: #777;
	color: white;
	font-size: 2em;
	padding: 1em;
	border: 1px solid lime;
}

#start {
	width: 75%;
	border: 1px solid;
	padding: 0.5vw;
	background: red;
	color: black;
}

canvas {
	width: 95%;
	height: 45vw;
	background: #111;
	border: 1px inset white;
}

.label {
	width: 45vw;
	border: 1px solid;
	padding: 0.5vw;
}

#freq {
	width: 75vw;
	margin: 0;
	padding: 0.5vw;
}

.update .label {
	background: grey;
}

.array-box {
	border: 1px solid;
	width: 45%;
	padding: .5vw;
	margin: 0.5vw;
}

.array-box .label {
	background: blue;
}

.item-box {
	width: 100%;
}

.waves {
	width: 100%;
}

.wave {
	width: 20%;
	border: 1px solid;
	margin-bottom: 0.5vw;
	padding: 0.5vw;
}

.update {
	width: 95vw;
	padding: 0.5vw;
	border: 1px solid;
}

#arrAmt {
	margin: 1vw;
}

#enter {
	width: 10%;
	background-color: #ccc;
	color: #000;
}

#enter:hover {
	background-color: #00f;
	color: #fff;
}

#enter:active {
	background-color: #f00;
	color: #fff;
}

.item {
	min-width: 4vw;
	min-height: 4vw;
	border: 1px solid;
	background: none;
}