# Headings

Elements h1, h2, h3, h4,
h5, h6 make up the heading content category.

h1 I am most important.

h2 Back in my quaint garden

h3 Jaunty zinnias vie with flaunting phlox.

h4 Five or six big jet planes zoomed quickly by the new tower.

h5 Expect skilled signwriters to use many jazzy, quaint old alphabets effectively.
h6 Pack my box with five dozen liquor jugs.

# Sections

Elements article, aside, nav,
section make up the sectioning content category.

This paragraph is nested inside an article element. It contains many different, sometimes useful, HTML5 elements. Of course there are classics like emphasis, strong,
and small but there are many others as well. Hover the following text for abbreviation element: abbr. You can define deleted text which often gets replaced with inserted text.You can also use keyboard text, which sometimes is styled similarly to the <code> or samp elements. Even more specifically, there is an element just for variables. Not to be mistaken with block
quotes below, the quote element lets you denote something as quoted text. Lastly don’t forget the sub (H2O) and sup (E = MC2) elements.

This paragraph is contained in a section element of its parent article element.↓ The following paragraph has the hidden attribute and should not be displayed. ↓

↑ The previous paragraph should not be displayed. ↑

# Phrasing

Elements abbr, b, bdi,
bdo, br, cite, code,
data, del, dfn, em,
i, ins, kbd, mark,
meter, progress, q, s,
samp, small, span, strong,
sub, sup, time, u,
var, wbr, and others make up the phrasing content category.

abbr: Some vehicles meet the
SULEV standard.
br was used to make this sentence start on a new line.

bdi: Some languages read right to left, مرحبا.
bdo: The normal direction has been

em is used for emphasis and usually renders as italics, contrast that with i which is used for alternate voice or to offset from the normal (such as a phrase from a different language or taxonomic designation): E. coli can be bad. strong is used for importance or urgency and usually renders as bold, contrast that with b which is used to draw attention without the semantic meaning of importance.

cite: In the words of Charles BukowskiAn intellectual says a simple thing in a hard way. An artist says a hard thing in a simple way.

data can be used to specify 5 A.M. that is machine-readable, but time is a better choice for specifying in a machine-readable format.

del can be varily used to mark deletions. ins marks insertions. s: similar to del, but used to mark content that is no longer relevant. Windows XP version available. u: a holdover with no real meaning that should be removed. mark: the HTML equivalent of the yellow highlighter. span: a
generic element with no meaning by itself.

dfn: Foreign phrases add a certain je ne sais quoi to one’s prose.

q: The W3C page About W3C says the W3C’s mission is To lead the World Wide Web to its full potential by developing protocols and guidelines that ensure long-term growth for the Web.

kbd and samp: I did this:

c:\>format c: /yes

Is that bad? Press Ctrl+F5 for a hard reload.

var: To log in, type ssh user@example.com, where user is your user ID.

meter and progress: Storage space usage:
6 blocks used (out of 8 total) Progress: 37%

sub is used for subscripts: H2O. sup is used for superscripts: E = MC2. small is used for side comments: I wrote this whole document. [Editor’s note: no he did not] wbr: used to specify where a word may break and it is supercalifragilisticexpialidocious.

# Palpable Content

Elements a, address, blockquote,
button, details, dl, fieldset,
figure, form, input, label,
map, ol, output, pre,
select, table, textarea,
ul, and others make up the palpable content category.

a: Example.


1 Infinite Loop
Cupertino, CA 95014
United States


I quickly explained that many big jobs involve few hazards

This is a mult-line blockquote with a cite reference. People think focus means saying yes to the thing you’ve got to focus on. But that’s not what it means at all. It means saying no to the hundred other good ideas that there are. You have to
pick carefully. I’m actually as proud of the things we haven’tdone as the things I have done. Innovation is saying no to 1,000 things.

Steve Jobs, Apple Worldwide Developers’ Conference, 1997

details and summary:

Copying… 25%
Transfer rate:
Color profile:
SD (6-1-6)


Definition List Title
Definition list division.
Kitchen Sink
Used in expressions to describe work in which all conceivable (and some inconceivable) sources have been mined. In this case, a bunch of markup.
Defines content aside from the page content
Defines a section that is quoted from another source


Figure 1: A picture of Bill Murray from fillmurray.com


# Forms

I am legend

I am also legend

ul and ol:

  • Unordered List item one
    • Nested list item
      • Level 3, item one
      • Level 3, item two
      • Level 3, item three
      • Level 3, item four
    • List item two
    • List item three
    • List item four
  • List item two
  • List item three
  • List item four
  1. List item one
    1. List item one
      1. List item one
      2. List item two
      3. List item three
      4. List item four
    2. List item two
    3. List item three
    4. List item four
  2. List item two
  3. List item three
  4. List item four




pre {
display: block;
padding: 7px;
background-color: #F5F5F5;
border: 1px solid #E1E1E8;
border-radius: 3px;
white-space: pre-wrap;
word-break: break-all;
font-family: Menlo, Monaco;
line-height: 160%;
 open mailbox

Opening the mailbox reveals:
A leaflet.



# Tables

Tables can have captions now.
Person Number Third Column
Someone Lastname 900 Nullam quis risus eget urna mollis ornare vel eu leo.
Person Name 1200 Vestibulum id ligula porta felis euismod semper. Donec ullamcorper nulla non metus auctor fringilla.
Another Person 1500 Vivamus sagittis lacus vel augue laoreet rutrum faucibus dolor auctor. Nullam id dolor id nibh ultricies vehicula ut id elit.
Last One 2800 Morbi leo risus, porta ac consectetur ac, vestibulum at eros. Cras mattis consectetur purus sit amet fermentum.

In the following table, characteristics are given in the second column, with the negative side in the left column and the positive side in the right column.

Characteristics with positive and negative sides
Negative Characteristic Positive
Sad Mood Happy
Failing Grade Passing
Complex table with a thead, multiple tbody elements, and a tfoot.
2008 2007 2006
Net sales $32,479 $24,006 $19,315
Cost of sales 21,334 15,852 13,717
Gross margin $11,145 $8,154 $5,598
Gross margin percentage 34.3% 34.0% 29.0%

# Embeds

Elements audio, canvas, embed,
iframe, img, math, object,
picture, svg, video make up the embedded content category.

audio: By Cqdx [CC BY-SA 3.0 ], from Wikimedia Commons.


img: Bill Murray


Quadratic Equation







picture: Bill Murray