HTML is a markup language used to define the structure and layout of web pages. Key points:
- HTML uses tags like <h1> and <p> to describe headings and paragraphs in a web page.
- The <html> tag defines an HTML document, <body> contains visible page content.
- Links are defined with <a> tags, images with <img> tags.
- HTML documents are displayed in web browsers, which interpret the tags but hide them from view.
- HTML is a simple language for structuring information, not for page layout or formatting.
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