Chart.js/samples/style.css

body, html {
	font-family: sans-serif;
	padding: 0;
	margin: 0;
}

.content {
	max-width: 800px;
	margin: auto;
	padding: 16px;
}

.wrapper {
	min-height: 400px;
	padding: 16px 0;
	position: relative;
}

.wrapper.col-2 {
	display: inline-block;
	min-height: 256px;
	width: 49%;
}

@media (max-width: 400px) {
	.wrapper.col-2 {
		width: 100%
	}
}

.wrapper canvas {
	-moz-user-select: none;
	-webkit-user-select: none;
	-ms-user-select: none;
}

.toolbar {
	display: flex;
}

.toolbar > * {
	margin: 0 8px 0 0;
}

.btn-on {
	border-style: inset;
}

.analyser table {
	color: #333;
	font-size: 0.9rem;
	margin: 8px 0;
	width: 100%
}

.analyser th {
	background-color: #f0f0f0;
	padding: 2px;
}

.analyser td {
	padding: 2px;
	text-align: center;
}