HtmGem/htmgem.css

html {
	font-family: sans-serif;
	font-size:16px;
	color:#1E4147;
	background-color:#fafafa;
}

body {
	max-width: 1024px;
	margin: auto;
}

p, ul {
    margin-top: 0;
    margin-bottom: 0.3em;
    padding-top: 0;
    padding-bottom: 0;
}

h1,h2,h3{
	line-height:1.2;
	color: #66f;
    margin-top: 0;
    margin-bottom: 0;
    padding-top: 0;
    padding-bottom: 0;
}

h1 {
	text-align: center;
	margin-bottom: 1em;
}

blockquote {
	background-color: #eee;
	border-left: 3px solid #444;
	margin: 1rem -1rem 1rem calc(-1rem - 3px);
	padding: 1rem;
}

ul, li {
	padding: 0;
}

a {
	color:#820;
	text-decoration: none;
}

a:visited {
	color: #868;
}

pre {
	background-color: #eee;
	margin: 0 -1rem;
	padding: 1rem;
	overflow-x: auto;
}

@media only screen and (max-width: 1024px) {
	body {
		margin: 2em;
	}
	h1 {
		font-size: 4em;
	}
	h2 {
		font-size: 3.5em;
	}
	h3 {
		font-size: 3em;
	}
	p, pre {
		font-size: 2.6em;
	}
}

@media(prefers-color-scheme:dark) {
	html {
		background-color: #111;
		color: #eee;
	}

	blockquote {
		background-color: #000;
	}

	pre {
		background-color: #222;
	}
	
	a {
		color: #0087BD;
	}

	a:visited {
		color: #802200;
	}
}