What is HTML?
HTML stands for HyperText Markup Language. It tells the browser what is on the page — headings, paragraphs, images, links.
<h1>Hello world</h1>
<p>This is a paragraph.</p>
Every HTML document has a structure:
<!doctype html>
<html>
<head><title>My page</title></head>
<body>...</body>
</html>