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HTMLmarkup~20 mins

DOCTYPE declaration in HTML - Practice Problems & Coding Challenges

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Challenge - 5 Problems
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DOCTYPE Mastery Badge
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Test your skills under time pressure!
🧠 Conceptual
intermediate
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What is the purpose of the DOCTYPE declaration in HTML?
Choose the best explanation for why we include a DOCTYPE declaration at the start of an HTML document.
AIt adds styling rules to the page automatically.
BIt tells the browser which version of HTML to use for rendering the page.
CIt defines the language used in the document's text content.
DIt loads external JavaScript files needed for the page.
Attempts:
2 left
💡 Hint
Think about how browsers decide how to display your page.
📝 Syntax
intermediate
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Which DOCTYPE declaration is correct for HTML5?
Select the exact DOCTYPE declaration that should be used at the top of an HTML5 document.
A<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN">
B>lmth EPYTCOD!<
C<!DOCTYPE html5>
D<!DOCTYPE html>
Attempts:
2 left
💡 Hint
HTML5 uses a simple and short DOCTYPE.
❓ rendering
advanced
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What happens if you omit the DOCTYPE declaration in an HTML document?
Choose the most accurate description of the browser's behavior when the DOCTYPE is missing.
AThe browser renders the page in quirks mode, which may cause inconsistent layout and styling.
BThe browser disables all CSS styles on the page.
CThe browser automatically assumes HTML5 and renders normally.
DThe browser refuses to load the page and shows an error.
Attempts:
2 left
💡 Hint
Think about how browsers handle missing instructions.
❓ selector
advanced
2:00remaining
Which CSS selector targets the DOCTYPE declaration in an HTML document?
Select the correct CSS selector that can style the DOCTYPE declaration.
AThere is no CSS selector for DOCTYPE declarations.
B:doctype
Chtml::doctype
DDOCTYPE
Attempts:
2 left
💡 Hint
Consider what DOCTYPE is and if it is part of the DOM.
❓ accessibility
expert
2:00remaining
How does the DOCTYPE declaration affect accessibility tools like screen readers?
Choose the most accurate statement about the impact of DOCTYPE on accessibility tools.
AAccessibility tools ignore the DOCTYPE declaration completely.
BDOCTYPE directly adds ARIA roles to the document for screen readers.
CDOCTYPE helps browsers render correctly, which indirectly supports accessibility tools to interpret content properly.
DDOCTYPE enables keyboard navigation features automatically.
Attempts:
2 left
💡 Hint
Think about how correct rendering affects assistive technologies.