html,
html *,
html *::before,
html *::after {
	box-sizing: border-box;
}

body {
	margin: 0;
	font-family: -apple-system, BlinkMacSystemFont, Segoe UI, Oxygen, Ubuntu, Cantarell, Fira Sans, Droid Sans, Helvetica Neue, sans-serif;
	font-size: 16px;
	line-height: 1.66;
	color: #333;
}

h1, h2, h3, h4, h5, h6 {
	margin: 0 0 0.5em 0;
	font-weight: 400;
	line-height: 1.2;
}

h1 {
	font-size: 2em;
}

a {
	color: inherit;
	font-weight: 500;
}

.sr-only {
	position: absolute;
	width: 1px;
	height: 1px;
	padding: 0;
	overflow: hidden;
	clip: rect(0,0,0,0);
	white-space: nowrap;
	-webkit-clip-path: inset(50%);
	clip-path: inset(50%);
	border: 0;
}

.aspect--16by9 {
	position: relative;
	padding-top: 56.25%;
}

.aspect--16by9 > iframe {
	position: absolute;
	width: 100%;
	height: 100%;
	left: 0;
	top: 0;
}

.icon {
	display: inline-block;
	width: 1em;
	height: 1em;
	stroke-width: 0;
	stroke: currentColor;
	fill: currentColor;
}

.box {
	border: 3px solid #ececec;
	border-radius: .5em;
	padding: 1em;
}

code {
	font-family: menlo, inconsolata, monospace;
	font-size: calc(1em - 2px);
	color: #555;
	background-color: #f0f0f0;
	padding: 0.2em 0.4em;
	border-radius: 2px;
}

@media (min-width: 400px) {
	body {
		font-size: 16px;
	}
}