style.css

html {
	text-size-adjust: none;
	-webkit-text-size-adjust: none;
}

body {
	font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial,
		sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji';
	line-height: 1.5;
	padding: 2rem;
	margin: 1rem auto;
	max-width: 64rem;
	display: flex;
	flex-direction: column;
	min-height: 100vh;
	min-height: -webkit-fill-available;
	box-sizing: border-box;
}

input,
select,
textarea,
button,
[contenteditable] {
	font: inherit;
	font-size: max(1em, 16px);
}

button {
	appearance: none;
	border: 0.1em solid;
	padding: 0.25em 0.5em;
	background: #f3f3f3;
	color: #000;
	white-space: nowrap;
	box-shadow: 0.1em 0.1em currentColor;
}

button:active {
	background: #fe0;
}

[contenteditable] {
	white-space: nowrap;
	padding: 0.25em 0.5em;
	border: 1px dotted;
	background: #fff;
}

button[disabled] {
	color: #777;
	cursor: not-allowed;
}

footer {
	margin-top: auto;
	padding: 2em 0;
	border-top: 1px solid;
}

a {
	color: #006be4;
}

#app {
	margin: 1em 0;
}

.mdn {
	font-family: 'Source Code Pro', Consolas, monospace;
}

pre {
	white-space: pre-wrap;
}

kbd,
code,
pre {
	font-family: 'Source Code Pro', Consolas, monospace;
	margin: 0;
}

kbd {
	border-bottom: 1px dotted;
}

.anno {
	font-size: 0.6em;
	font-weight: bold;
	display: inline-block;
	margin: 0 1em;
}

table {
	border-collapse: collapse;
	width: 100%;
}

table table {
	font-size: 0.9em;
}

tr {
	border-bottom: 1px solid #aaa;
}

table table tr {
	border: none;
}

th,
td {
	text-align: left;
	vertical-align: top;
	padding: 0.5em 0;
}

.clipboard-section {
	margin: 2em 0;
}

td img {
	max-width: 100%;
}

.intro-msg {
	background: #fe0;
	border: 0.15em solid;
	padding: 1em 2em;
}

.intro-msg > * {
	margin: 0;
}

.intro-msg h2 {
	font-size: 1em;
}

.intro-msg ul {
	padding: 0;
}

.intro-msg li {
	margin: 0.5em 0;
}

h1 {
	font-size: 2em;
	line-height: 1.2;
}

@supports (width: max-content) {
	h1 {
		width: max-content;
		border: 0.1em solid;
		padding: 0.2em;
		transform: rotate(-3deg);
		background: #fe0;
		box-shadow: 0.1em 0.1em currentColor;
	}
}

h1 + p {
	font-size: 1.4em;
	max-width: 60ch;
}

.cb-entry {
	padding: 0.5em;
	background: #f3f3f3;
	color: #444;
	tab-size: 2;
	-moz-tab-size: 2;
	-webkit-tab-size: 2;
	word-break: break-all;
	margin: -0.5em 0;
}

.cb-copy {
	padding: 0.5em 0.5em 0.5em 0;
}

@media (max-width: 60ch) {
	html {
		font-size: 90%;
	}
	body {
		padding: 1rem;
		margin: 0;
	}
}