It's HTML Doctype: What is it?
The HTML version that the page is using is indicated to the browser by DOCTYPE.
It aids in the proper display of the page by the browser.
👉 Doctype is a browser instruction, not an HTML tag.
🧠 Why Is Doctype Important?
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🌍 guarantees accurate rendering across all browsers
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🛑 Prevents unexpected layout problems, or "quirks mode."
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✅ Ensures that your page complies with web standards
Browsers may behave differently without Doctype 😵💫.
🏁 The most popular HTML5 Doctype
The HTML5 Doctype is used in contemporary websites:
<!DOCTYPE html>
📌 Put this at the top of your HTML file.
🏗️ HTML with Doctype Example <!DOCTYPE html>
<!DOCTYPE html>
<html>
<head>
<title>Doctype Example</title>
</head>
<body>
<h1>Hello HTML!</h1>
<p>This page uses HTML5 Doctype.</p>
</body>
</html>
This guarantees that standards mode is used by the browser.
🕰️ Older Doctype (For Knowledge Only)
Long Doctype declarations were present in earlier versions of HTML 😬
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN">
These are no longer necessary.
HTML5 maintains simplicity and cleanliness 👍
⚠️ Common Errors
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❌ Incorrectly writing Doctype in lowercase
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❌ Placing Doctype inside <html>
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❌ Completely forgetting Doctype
✅ Put it on the first line every time.
🎯 Important Things to Keep in Mind
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Doctype instructs the browser on how to interpret HTML.
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The HTML5 Doctype is brief and simple.
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Include it in every HTML file at all times.
🚀 Last Advice
Start every new HTML file with Doctype 🧑💻.
It's a tiny line, but it has a lot of power 💥