Atomix One is a hybrid theme, meaning it supports both the Classic Editor’s HTML elements and the Block Editor’s structured blocks side by side. This page is a showcase for both: the first half renders through a Classic block using traditional HTML tags such as headings, blockquotes, and tables, while the second half uses native Gutenberg blocks to achieve comparable formatting.
Classic Elements
Content below is authored in the Classic block, using raw HTML tags rather than block markup.
Headings
Header one
Header two
Header three
Header four
Header five
Header six
Blockquotes
Single line blockquote:
Stay hungry. Stay foolish.
Multi line blockquote with a cite reference:
The HTML
<blockquote>element (or HTML Block Quotation Element) indicates that the enclosed text is an extended quotation. Usually, this is rendered visually by indentation. A URL for the source of the quotation may be given using theciteattribute, while a text representation of the source can be given using the<cite>element.multiple contributors — MDN HTML element reference: blockquote
Tables
| Employee | Salary | Note |
|---|---|---|
| Jane | $1 | Because that’s all Steve Jobs needed for a salary. |
| John | $100K | For all the blogging he does. |
| Jane | $100M | Pictures are worth a thousand words, right? So Tom x 1,000. |
| Jane | $100B | With hair like that?! Enough said… |
Definition Lists
- Definition List Title
- Definition list division.
- Startup
- A startup company or startup is a company or temporary organization designed to search for a repeatable and scalable business model.
- #dowork
- Coined by Rob Dyrdek and his personal body guard Christopher “Big Black” Boykins, “Do Work” works as a self motivator, to motivating your friends.
- Do It Live
- I’ll let Bill O’Reilly explain this one.
Unordered Lists (Nested)
- List item one
- List item one
- List item one
- List item two
- List item three
- List item four
- List item two
- List item three
- List item four
- List item one
- List item two
- List item three
- List item four
Ordered List (Nested)
- List item one — start at 8
- List item one
- List item one — reversed attribute
- List item two
- List item three
- List item four
- List item two
- List item three
- List item four
Common HTML Tags
Address tag — sets aside contact information for its nearest article or body ancestor:
1 Infinite LoopCupertino, CA 95014
United States
Anchor tag — creates a hyperlink: this is an example of a link.
Abbreviation tag — marks up an abbreviation or acronym, often paired with a title attribute for the expansion: the abbreviation srsly stands for “seriously”.
Code tag — styles a fragment of computer code inline or as a block:
.post-title {
margin: 0 0 5px;
font-weight: bold;
font-size: 38px;
line-height: 1.2;
}
Long unbroken strings inside a code block rely on word-wrap: break-word; to avoid overflowing their container.
Emphasis tag — italicizes the enclosed text, typically used to indicate stress emphasis.
Preformatted tag — preserves whitespace and line breaks exactly as typed, useful for poetry or ASCII art:
The Road Not Taken
Robert Frost
Two roads diverged in a yellow wood,
And sorry I could not travel both (\_/)
And be one traveler, long I stood (='.'=)
And looked down one as far as I could (")_(")
To where it bent in the undergrowth;
I shall be telling this with a sigh
Somewhere ages and ages hence:
Two roads diverged in a wood, and I—
I took the one less traveled by,
And that has made all the difference.
Quote tag — for short, inline quotations: Developers, developers, developers…
— Steve Ballmer.
Strike/S tag — this tag shows strike-through text, used to mark content that is no longer accurate or relevant.
Small tag — this tag renders text at a smaller size, often used for fine print or side comments.
Strong tag — this tag shows bold text, indicating strong importance.
Subscript tag — getting our science styling on with H2O, which pushes the “2” down.
Superscript tag — sticking with science, Albert Einstein’s E = MC2, which lifts the “2” up.
Images
A standard image with an optional caption, rendered using the classic <figure> and <figcaption> elements:

This sentence is followed by a horizontal rule:
Block Elements
The same content as the Classic section above, rebuilt using native Gutenberg blocks, followed by a selection of block-only formatting options that have no direct classic equivalent.
Heading block
The Heading block offers a level selector (H1–H6) directly in the toolbar, rather than requiring a separate tag for each size:
Header one
Header two
Header three
Header four
Header five
Header six
Quote block
Single line blockquote:
Stay hungry. Stay foolish.
Multi line blockquote with a cite reference:
The HTML
<blockquote>element (or HTML Block Quotation Element) indicates that the enclosed text is an extended quotation. Usually, this is rendered visually by indentation. A URL for the source of the quotation may be given using theciteattribute, while a text representation of the source can be given using the<cite>element.— multiple contributors, MDN HTML element reference: blockquote
Table block
| Employee | Salary | Note |
|---|---|---|
| Jane | $1 | Because that’s all Steve Jobs needed for a salary. |
| John | $100K | For all the blogging he does. |
| Jane | $100M | Pictures are worth a thousand words, right? So Tom x 1,000. |
| Jane | $100B | With hair like that?! Enough said… |
List block (unordered, nested)
- List item one
- List item one
- List item one
- List item two
- List item three
- List item four
- List item two
- List item three
- List item four
- List item one
- List item two
- List item three
- List item four
List block (ordered, nested)
- List item one
- List item one
- List item two
- List item three
- List item four
- List item two
- List item three
- List item four
Common inline elements (Paragraph block)
Anchor — creates a hyperlink: this is an example of a link.
Abbreviation — the abbreviation srsly stands for “seriously”.
Emphasis — italicizes the enclosed text, typically used to indicate stress emphasis.
Strong — this tag shows bold text, indicating strong importance.
Inline quote — for short, inline quotations: Developers, developers, developers…
— Steve Ballmer.
Strikethrough — this tag shows strike-through text, used to mark content that is no longer accurate or relevant.
Small — this tag renders text at a smaller size, often used for fine print or side comments.
Subscript — getting our science styling on with H2O, which pushes the “2” down.
Superscript — sticking with science, Albert Einstein’s E = MC2, which lifts the “2” up.
Code block
.post-title {
margin: 0 0 5px;
font-weight: bold;
font-size: 38px;
line-height: 1.2;
}
Unlike the classic <pre><code> pairing, the block automatically escapes HTML characters as you type, so angle brackets render correctly without manual entity encoding.
Image block
The Image block supports alignment, captions, alt text, linking, and rounded corners from the block toolbar — no HTML attributes required.

Columns block (no classic equivalent)
Multi-column layouts had no native classic-editor equivalent and previously required custom shortcodes or raw HTML/CSS. The Columns block builds them visually, with adjustable widths per column, and stacks automatically on smaller screens.
Column widths can be set individually, and each column can hold any other block, including nested columns.
Columns automatically stack on smaller screens, something a hand-rolled HTML table layout would not do without extra responsive CSS.
Each column can hold any combination of blocks – headings, images, lists, or even further nested columns.
Media & Text block (no classic equivalent)
Places an image and text side by side without touching HTML. The image side and text side can be swapped, and the layout stacks on mobile automatically.

A heading sits alongside the image
Supporting body copy sits here, alongside the image. The text column can contain any blocks – headings, lists, buttons – and the image panel fills its height automatically.
Pull Quote block (no classic equivalent)
The Pull Quote block is designed for editorial callouts – a sentence lifted from the body copy and given visual weight to draw readers in.
— the WordPress Block Editor handbook
Buttons block (no classic equivalent)
Styled call-to-action buttons previously meant writing a plugin shortcode or pasting an anchor tag with inline styles. The Buttons block gives editors colour, radius, and alignment controls without touching markup.
Callout with button (no classic equivalent)
A Group block used as a styled callout panel, combining a heading, body copy, and a Button block within a single container – a common pattern for feature highlights or calls to action.
Ready to get started?
Group blocks can combine headings, text, and buttons into a single styled container — useful for callouts, banners, or feature highlights without any custom HTML.