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HTML

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Insecure Resource

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CSS

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CSS Base

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JavaScript

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Babel includes JSX processing.

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HTML 

              
                <div lang="de">
	<h1>Berliner Fernsehturm</h1>
	<p>Der Berliner Fernsehturm ist mit 368 Metern das höchste Bauwerk Deutschlands sowie der vierthöchste Fernsehturm Europas. Der Fernsehturm befindet sich im Park am Fernsehturm im Berliner Ortsteil Mitte. Er war im Jahr der Fertigstellung 1969 der zweithöchste Fernsehturm der Welt und zählt mit über einer Million Besuchern jährlich zu den zehn beliebtesten Sehenswürdigkeiten in Deutschland.<p>
	<p hidden="">Der Fernsehturm im Internationalen Stil wurde 1965–1969 von der Deutschen Post der DDR im Park am Fernsehturm anstelle des abgerissenen Marienviertels errichtet. Am 3. Oktober 1969 erfolgte die Eröffnung. Das Bauwerk ist über 220 Meter höher als der alte Berliner Funkturm aus den 1920er Jahren im Westteil der Stadt. Als Wahrzeichen und weithin sichtbare Landmarke prägt es die Skyline der Stadt. In Eröffnungsszenen von Filmen mit Bezug zu Berlin wird die Hauptstadt neben Bauwerken wie dem Brandenburger Tor, der Siegessäule und dem Reichstagsgebäude häufig durch den Fernsehturm symbolisiert.</p>
	<footer>
		Text: <a href="https://de.wikipedia.org/wiki/Berliner_Fernsehturm" target="_top">Wikipedia</a>,
		Foto: <a href="https://unsplash.com/es/@jonnymckenna" target="_top">Jonny McKenna</a>/Unsplash
  </footer>
</div>
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CSS 

              
                * {
	box-sizing: border-box;
}

:root {
	--background: white;
	--color: black;
	--text-background: #EEF0F8;
}

@media (prefers-color-scheme: dark) {
	--background: #111;
	--color: whitesmoke;	
	--text-background: #201030;
}

body {
	background: var(--background);
	margin: 1em;
	color: var(--color);
	font: 1.2em/1.3 Cambria, serif;
	font-variant-numeric: lining-nums;
}

div {
	max-width: 36em;
	padding: 6em 2em 6em 12em;
	position: relative;
}

div::before, div::after {
	content: '';
	position: absolute;
	z-index: -1;
}

div::after {
	background: var(--text-background);
	inset: 5em 1em 5em 11em;
	outline: 0.75em solid var(--background);
}

div::before {
	background: url(https://images.unsplash.com/photo-1573906208264-0cc0b5e4f0e8?ixlib=rb-4.0.3&ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&auto=format&fit=crop&w=460&q=80) 55% 30%/cover;
	inset: 1em auto 1em 1em;
	width: 12em;
}

div > :first-child {
	margin-top: 0;
}

div > :last-child {
	margin-bottom: 0;
}

div h1 {
	font: 1.4em/1.2 Oswald, Cambria, serif;
}

div footer {
	font: 0.8em/1.2 Calibri, sans-serif;
}

div footer a {
	color: currentcolor;
	text-decoration-color: gray;
}

div p {
	hyphens: auto;
}
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JS
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999px

Console