HTML Doctype Declaration

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The declaration provides web browsers with information regarding the HTML version used to create a web page.


The declaration should appear as the initial line of every HTML document.


<!DOCTYPE html>


This declaration marks the HTML5 standard as the current legitimate doctype.

html-doctype

Purpose of Doctype

  • This doctype directs browsers to display the page through standards mode.
  • Prevents browsers from entering quirks mode where they guess how to render content
  • Improves consistency across different browsers

Where to Place It

<!DOCTYPE html>
<html>
<head>
  <title>My First HTML Page</title>
</head>
<body>
  <h1>Hello, World!</h1>
  <p>This is a paragraph.</p>
</body>
</html>
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No content or space should come before the doctype declaration

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