← HTML & CSS

Headings (h1 to h6)

The most important HTML heading element - displays as the largest heading on the page. Headings range from <h1> (most important) to <h6> (least important).

What it does: Headings should descend in order: h1, h2, h3. Skipping levels breaks the document structure and accessibility. HTML has exactly six heading elements: <h1> through <h6>. There is no <h7> or higher. <h1> is the most important heading - it is the largest and should be used for the main page title. HTML tag names must be lowercase. The correct form is <h2> not <H2>. Heading elements are not self-closing. Each needs a closing tag: <h1>Title</h1>, not just <h1>Title. <h6> is the sixth and final heading level, producing the smallest heading text on the page. A closing tag requires a forward slash: </h2>. Writing <h2> a second time opens a new element rather than closing the first.

Common mistakes: HTML heading tags must be lowercase. <H1> with a capital H is non-standard. The correct form is <h1> and </h1> in lowercase. Heading levels should not be skipped. Jumping from h1 directly to h3 skips h2, which breaks the heading hierarchy.

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Learning
Duo
Which heading tag creates the most important and largest heading?
<h1><h6>
Matches
<H2>Section Title</H2>
Heading tag names must be lowercase - <H2> should be <h2>
Applying
Meanings
Term
<h1>
Meaning
The most important HTML heading element - displays as the largest heading on the page. Headings range from <h1> (most important) to <h6> (least important).
Practice
<h1>My Website</h1>
Testing
Gaps
<>Welcome to My Page</h1>
Check Answer
Spots
1<H1>Main Title</H1>
2<h2>Subtitle</h2>

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Quick Questions

1. Which heading tag creates the most important and largest heading?
A. <h1> ✓
B. <h6>
<h1> is the most important heading - it is the largest and should be used for the main page title.
2. How many h1 elements should a page typically have?
A. One ✓
B. As many as needed
A page should have exactly one <h1> for the main title. Multiple h1 tags break the page structure.
3. True or false: HTML has heading levels h1 through h7.
A. False ✓
B. True
HTML only has six heading levels: <h1> through <h6>. There is no <h7> element.
4. Which heading level comes directly after h2 in the correct hierarchy?
A. h3 ✓
B. h4
Heading levels should follow in order: h1, h2, h3, h4, h5, h6. Skipping levels breaks the document outline.
5. True or false: <H2> with a capital H is valid HTML.
A. False ✓
B. True
HTML tag names must be lowercase. The correct form is <h2> not <H2>.

Match the Pairs

<h1>My Website</h1> The most important heading - displays as the largest text and should appear once as the main page title
<h6>Fine Print</h6> The least important heading level - displays as the smallest heading text
Heading levels should be used in order - never skip from h1 to h3 <h1>Title</h1> <h2>Section</h2> <h3>Subsection</h3>
HTML provides six heading levels from most important to least important <h1>One</h1> <h3>Three</h3> <h6>Six</h6>
<H2>Section Title</H2> Heading tag names must be lowercase - <H2> should be <h2>
<h2>Intro<h2> The closing tag must be </h2> with a forward slash - <h2> again is another opening tag

Key Term

<h1>
The most important HTML heading element - displays as the largest heading on the page. Headings range from <h1> (most important) to <h6> (least important).

Fill in the Blanks

1. <h1>Welcome to My Page</h1>
Hint: Type the most important heading tag name
2. <h2>About Us</h2>
Hint: Type the second-level heading tag name
3. <h3>My Hobbies</h3>
Hint: Type the closing tag name that matches the opening h3 tag
4. <body> <h4>Section Title</h4> </body>
Hint: Type the fourth-level heading tag name
5. <h6>Fine Print</h6>
Hint: Type the smallest and least important heading tag name

Spot the Error

Question 1
A <H1>Main Title</H1>
B <h2>Subtitle</h2>
C <h3>Section</h3>
Line A — HTML heading tags must be lowercase. <H1> with a capital H is non-standard. The correct form is <h1> and </h1> in lowercase.
Question 2
A <h1>Page Title</h1>
B <h3>Skipped Level</h3>
C <h2>Back to Two</h2>
D <p>Content</p>
Line B — Heading levels should not be skipped. Jumping from h1 directly to h3 skips h2, which breaks the heading hierarchy.
Question 3
A <h1>Title</h1>
B <h2>Intro</h2>
C <h2>About<h2>
D <p>Text</p>
Line C — The third heading is missing a closing </h2> tag. The second <h2> should be </h2> with a forward slash to close the element.
Question 4
A <h1>Welcome</h1>
B <h2>Section One</h2>
C <h3>Subsection</h3>
D <h7>Too Deep</h7>
Line D — There is no <h7> element in HTML. Headings only go from <h1> to <h6>. Use <h6> for the deepest heading level.
Question 5
A <body>
B <h1>Main Title</h1>
C <h2>Chapter One</h2>
D <h3>Topic</h3>
E <H4>Sub-topic</H4>
F </body>
Line E — <H4> with capital letters is non-standard HTML. All heading tags must be lowercase: <h4> and </h4>.
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