Theme Stress Test

This post exists to stress-test the theme’s typography, spacing, wrapping, and “rich” blocks.

It intentionally includes long words (pneumonoultramicroscopicsilicovolcanoconiosis), long URLs (https://example.com/this/is/a/very/long/path/with_a_really_really_really_long_segment_that_should_wrap_nicely), and long inline code like THIS_IS_A_SINGLE_TOKEN_THAT_SHOULD_WRAP_OR_OVERFLOW_GRACEFULLY_DEPENDING_ON_CONTEXT_0123456789.

You should also try switching theme (system/light/dark) and font (sans/serif) while viewing this post.


Headings, spacing, and inline elements

A paragraph with italics, bold, bold italics, ~~strikethrough~~, and a link: Example link. Also test a “bare” URL: https://example.com.

Inline code should use the mono font: --base-size, --measure, --underline-thickness.

Keyboard keys should look like keys: press Cmd+K, then Esc.

Superscripts/subscripts: E = mc2, H2O.

H3: A subsection heading

This is a normal paragraph under an H3. Here’s a second sentence with a longUnbrokenIdentifierThatShouldStillBreakSomewhereEvenWithoutHyphenationBecauseOverflowWrapIsEnabled.

H4: Smaller heading

H5: Even smaller
H6: Smallest (muted)

Lists

Unordered list

  • One item
  • Another item with inline code: const x = 1
  • Nested list:
  • Sub-item A
  • Sub-item B
    • Sub-sub-item with a long token: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Ordered list

  1. First step
  2. Second step
  3. Third step
  4. Sub-step 3.1
  5. Sub-step 3.2

Mixed content in lists

  • A paragraph in a list item can be multi-line and still keep the correct spacing.

It should remain readable, not cramped, and should wrap nicely.

  • Another item

Blockquotes

This is a blockquote. It should have a left rule and slightly muted text.

It can span multiple paragraphs.

  • And it can contain lists
  • Which should inherit the quote styling

Callouts

Below are raw HTML callouts using the exact classes the theme styles.


Code blocks

Plain fenced code (no language)

This is a plain code fence.
It should still get the theme’s pre/code styling (wrap, padding, border, radius).

Language-tagged code fence (for Pygments / codehilite setups)

from dataclasses import dataclass

@dataclass
class Thing:
    name: str
    value: int

def demo(xs: list[int]) -> dict[str, int]:
    # Long line to test wrapping in code blocks:
    very_long = "0123456789" * 18 + "_THIS_LINE_IS_INTENTIONALLY_LONG_TO_FORCE_WRAPPING_AND_TEST_READABILITY"
    return {str(i): i*i for i in xs}
// JavaScript sample: long string + unicode + template literals
const title = "Theme Stress Test — Δ, café, naïve";
const longLine = "x".repeat(220) + "_WRAP_ME_PLEASE";
console.log(`${title}\n${longLine}`);
/* CSS sample: token-like content */
:root {
  --bg: #18181b;
  --text: #f8fafc;
  --measure: 55ch;
  --underline-thickness: 2px;
}

Indented code block (classic Markdown)

Indented code block.
It should look consistent with fenced code.

Tables

Markdown table (if your Markdown config enables tables)

| Token | Value | Notes | |---|---:|---| | --measure | 55ch | Readable line length | | --base-size | 17px | Body text size | | --p-space | 0.86em | Paragraph spacing | | --underline-thickness | 2px | Always-underlined links |

Wide HTML table wrapped in the theme’s .table-wrap

Column A Column B Column C Column D Column E Column F
Short Numbers inline_code() Long text that should wrap inside the cell without breaking layout https://example.com/some/really/long/url/that/should/wrap
Row 2 1234567890 --surface-2 More wrapping text. More wrapping text. More wrapping text. pneumonoultramicroscopicsilicovolcanoconiosis 🧪
Row 3 - {"json":"ok"} Try switching to light theme and confirming zebra striping remains subtle. Mixed: Café naïve coöperate soufflé 🌗

Figures (no featured image, but still exercising figure styles)

Inline SVG (tests figure border + radius + surface)
This is a normal <figure> with an inline SVG using .hero-graphic for the theme’s border/radius.

Details / disclosure widgets

Click to expand a <details> block

This should render with a border, rounded corners, and a subtle surface. The <summary> line should look clickable.

  • Nested list item
  • Another list item
Open by default

This one starts open, to test spacing when expanded.


Duplicate headings + unicode (ID generation stress)

Duplicate heading

Some text.

Duplicate heading

Some text again — the theme’s JS should assign a unique id for this duplicate.

Café naïve coöperate soufflé

Accents should be handled consistently in generated anchor ids.


Footnotes (theme-styled)

Footnote reference example1 and a second one2.


Footnotes

  1. This is footnote 1. It should be slightly smaller and muted, but still readable. ↩︎
  2. This is footnote 2. Include a link inside the footnote: example.com. ↩︎

Final edge cases

  • A very long “word” that is not code: antidisestablishmentarianismantidisestablishmentarianismantidisestablishmentarianism
  • A very long inline code token: SOME_RIDICULOUSLY_LONG_CONSTANT_NAME_THAT_SHOULD_NOT_DESTROY_LAYOUT_ABCDEFGHIJKLMNOPQRSTUVWXYZ_0123456789
  • A line with many em dashes — like this — to see spacing and wrapping.
  • Mixed punctuation: “quotes”, ‘quotes’, ellipsis… and arrows → ↩︎ ✓

That’s it. If anything looks off, it’s probably either: 1) a Markdown extension mismatch (tables/footnotes), or 2) an HTML element that needs a small theme rule.