Living fixture

Dracula-Nineties Component Sample

Living style fixture: every rule in dracula-nineties.css, mermaid.js and filter.js

A note stack here spans the block that follows it.⊕The first margin note in the stack. It floats to the inline end, and the notes below it clear it.⊕A second margin note, clearing the first, so the pair stacks down the margin column.⊕A third note makes the stack taller than its one-line paragraph, which is the case the index has to clear.

Headings & text ¶

Third-level heading #

Fourth level: body size, label tier

Fifth level: body size, muted tier

Sixth level: muted and italic

A new thought opens in small-caps. Body copy is Times New Roman at weight 400, with strong (orange), emphasis (inherits its surroundings), an internal hyperlink, an outbound link, a source citation src/theme/tokens.css:14, and inline code().

Status spans: verified, unverified, correction.

Annotation elements: a marked passage takes a translucent orange wash, and a shortcut renders as Ctrl K, a ringed chip distinct from inline code().

Markdown inline output: ~~struck through~~ drops to the muted tier, program output takes the mono face without the code chip, an HTML abbreviation carries a dotted rule, and H₂O sits beside 10³ without opening the line. An emoji image sets at text size with no frame.

Why Times New Roman and Courier New

The payload names the two faces a 1996 document actually had: Times New Roman for body copy and Courier New for code. Each loads from a libre metric clone on jsDelivr, pinned to an exact version, and falls back to the system face of the same name.

A sidenote lives here.This is a sidenote. It floats to the right margin and auto-numbers. And a margin note follows.⊕A margin note carries no number.

Code block

def greet [name: string] {
    print $"hello ($name)"
}

A highlighted block takes the same slot map the editor themes use: keywords pink, strings green, numbers orange, comments muted, functions link, types purple, fields label.

// highlighter classes, not hand-written spans
public Result Parse(string source) {
    var count = 42;
    return new Result("ok", count);
}

Pygments names the same slots one and two letters, so Sphinx, MkDocs, Quarto and a notebook export land in the same registers.

# pygments classes, not hand-written spans
def parse(source: str) -> Result:
    count = 42
    return Result("ok", total=count)

Table

Table caption: annotation register, start-aligned like every other block. An unwrapped table carries `tabindex`, because the escape hatch below 1000px hands it a sideways-scroll axis no keyboard could otherwise reach.
Column	Value	Note
alpha	1234	no stripe, no fill
beta	567	figures align on the class, not the cell
gamma	9012	hover me

Tree table

Depth comes from data-depth on the row, not from nesting. No role, no script.

Requirement tree: an unwrapped table, so it takes the sideways-scroll escape hatch below 1000px and carries `tabindex` to be reachable there.
Id	Title	State
Epic 1	root row, tinted and bold	New
F1	child row, one indent step	Active
REQ-01	grandchild, muted	MVP
REQ-02	sibling, untinted like every leaf	MVP
F2	second child	New
Epic 2	second root	New

Wide table in a scroll wrapper

A wide table wrapped in .table-scroll scrolls on both axes inside the wrapper, so the document never scrolls sideways, and the header stays pinned because the wrapper is the scrollport. The wrapper carries tabindex="0", role="region" and a label. The table keeps its own row and column semantics, because the role sits on the wrapper and never on the table.

Twenty-four rows across eight columns: past the 70vh cap and past the body width at once.
Id	Region	Q1	Q2	Q3	Q4	Trend	Note
R-1	Northwest	137	211	89	313	rising	Row 1 of twenty-four, long enough that eight columns outrun the body
R-2	Southeast	274	422	178	626	flat	Row 2 of twenty-four, long enough that eight columns outrun the body
R-3	Midlands	411	633	267	939	falling	Row 3 of twenty-four, long enough that eight columns outrun the body
R-4	Coastal	548	844	356	1252	rising	Row 4 of twenty-four, long enough that eight columns outrun the body
R-5	Interior	685	1055	445	1565	flat	Row 5 of twenty-four, long enough that eight columns outrun the body
R-6	Upper Bay	822	1266	534	1878	falling	Row 6 of twenty-four, long enough that eight columns outrun the body
R-7	Northwest	959	1477	623	2191	rising	Row 7 of twenty-four, long enough that eight columns outrun the body
R-8	Southeast	1096	1688	712	2504	flat	Row 8 of twenty-four, long enough that eight columns outrun the body
R-9	Midlands	1233	1899	801	2817	falling	Row 9 of twenty-four, long enough that eight columns outrun the body
R-10	Coastal	1370	2110	890	3130	rising	Row 10 of twenty-four, long enough that eight columns outrun the body
R-11	Interior	1507	2321	979	3443	flat	Row 11 of twenty-four, long enough that eight columns outrun the body
R-12	Upper Bay	1644	2532	1068	3756	falling	Row 12 of twenty-four, long enough that eight columns outrun the body
R-13	Northwest	1781	2743	1157	4069	rising	Row 13 of twenty-four, long enough that eight columns outrun the body
R-14	Southeast	1918	2954	1246	4382	flat	Row 14 of twenty-four, long enough that eight columns outrun the body
R-15	Midlands	2055	3165	1335	4695	falling	Row 15 of twenty-four, long enough that eight columns outrun the body
R-16	Coastal	2192	3376	1424	5008	rising	Row 16 of twenty-four, long enough that eight columns outrun the body
R-17	Interior	2329	3587	1513	5321	flat	Row 17 of twenty-four, long enough that eight columns outrun the body
R-18	Upper Bay	2466	3798	1602	5634	falling	Row 18 of twenty-four, long enough that eight columns outrun the body
R-19	Northwest	2603	4009	1691	5947	rising	Row 19 of twenty-four, long enough that eight columns outrun the body
R-20	Southeast	2740	4220	1780	6260	flat	Row 20 of twenty-four, long enough that eight columns outrun the body
R-21	Midlands	2877	4431	1869	6573	falling	Row 21 of twenty-four, long enough that eight columns outrun the body
R-22	Coastal	3014	4642	1958	6886	rising	Row 22 of twenty-four, long enough that eight columns outrun the body
R-23	Interior	3151	4853	2047	7199	flat	Row 23 of twenty-four, long enough that eight columns outrun the body
R-24	Upper Bay	3288	5064	2136	7512	falling	Row 24 of twenty-four, long enough that eight columns outrun the body

Blockquote, aside, details

Stat crux dum volvitur orbis. The Cross stands while the world turns.

Collapsible summary

Hidden content revealed on click.

Icon rows and a step chain

A tag-dot marks a categorical value that already has a color elsewhere, never a rank. The class carries only the dot, never the label, because it paints currentColor and would otherwise recolor the text beside it: Rust, Go, Python. A live-dot marks something live: streaming.

Implementimplement the functionality
Identifyidentify the bottleneck
Validateverify behavioral correctness

A step chain is for a flow too trivial to justify a Mermaid diagram. A graph with a branch or a loop still belongs in pre.mermaid. Its --icon-color takes a prose accent, never a --data-* slot: the node fills at full strength and the letter is --surface on top of it, so a ramp scoped to the 3:1 diagram floor lands that pair at 3.5:1 in light mode. A .tag-dot or an .icon-chip may still carry a --data-* color, because neither puts text on the fill. The chain below runs Specify, Implement, Optimize, Verify, one letter to a node. A node is a square with room for one character, so the words belong in the sentence that introduces the chain, the way this one does. Each .step-arrow is aria-hidden, because a screen reader otherwise reads the glyph between every pair of steps.

S I O V

Lists & definitions

Bullet one, muted marker
Bullet two
- nested item

Ordered one
Ordered two

Term: Definition of the term.
Another: Its definition.

A task list drops its marker and keeps the checkbox. Markdown emits the control disabled, so it stays read-only.

open item
done item

Timeline

A dl carrying class="timeline" becomes a two-column date spine: dates right-aligned on tabular figures, entries against a hairline. The date column is max-content, so the longest label sets the width for every row. Below 600px it collapses to one column and drops the rule.

Deep links carry an arrival cue: jump to the 802 entry or to footnote 1 and the destination takes an orange outline, distinct from the link-blue focus ring, and lands clear of the viewport edge.

c. 802: An approximate year. Entry text sits at the primary tier, not the caption tier a plain dd takes, because a timeline entry is the content rather than an annotation.¹
928-944: A range. The widest label in the column, so it sets the date width. Its digits still align with the rows above and below.
1431: A single year. Cite with a sup link into the sources list, never a floated .sidenote: a float cannot escape a grid item, so the note would land inside this column instead of the page margin.

Era groups are separate lists, so max-content would give each one its own date width and step the spine left down the page. Setting --timeline-date on an ancestor pins one axis across all of them.

First era

c. 1182-1201: The widest label in the document. It fits the pinned width exactly.

Second era

1431: Short labels, same axis. Without the pin this rule would sit further left than the one above it.
1992: Second row, to show the spine is continuous within a group.

Dated log

A dl carrying class="timeline log" drops the date spine and stacks each date as a full-width heading over its entry, so a reverse-chronological log reads down the page. A heading with class="band" takes the violet fill with silver text, the period's one saturated bar.

1999-08-11: Released the 0.9 beta. Fixed the crash on startup when no config file was present.
1999-07-28: Added the tabbed navigation to the main index. Reworked the directory listing to a single column.
1999-06-02: First public build: one page, three links, and a hit counter.

Markdown callouts, math & footnotes

GitHub alert blocks share the aside form (one accent bar, no fill) and carry the hue on the title line only.¹

Note

Link-blue bar. Neutral information.

Tip

Green bar. Optional advice.

Important

Purple bar. Do not skip this.

Warning

Orange bar, the same hue the plain aside takes.

Caution

Red bar. Risk of loss or breakage.

Pipe-table alignment: a converter emits no caption, so this one is the fixture's own, and it is what names the tab stop the escape hatch requires.
Alignment	from the	pipe table
start	center	3.14159

Math converted to MathML needs no script and no CDN: $E = m c^{2}$ sets inline without opening the line box, and a display block scrolls on its own axis rather than widening the page.

\sum_{n = 1}^{\infty} \frac{1}{n^{2}} = \frac{π^{2}}{6}

Pandoc’s MathJax output is a span.math.display instead. It scrolls the same way, and CSS cannot give it a tab stop, so it takes the same three attributes.

\[\sum_{n=1}^{\infty} \frac{1}{n^2} = \frac{\pi^2}{6}\]

The footnote block sits behind a hairline at the caption tier, tightened to the annotation register. ↩

Indented paragraphs (opt-in)

A container carrying class="indented" sets its paragraphs the way a book does: no gap between them, and every paragraph after the first opens with a 1.5em indent. The first paragraph is never indented, because nothing precedes it to break from.

This paragraph is the second, so it indents. The break is carried by the indent rather than by white space, which is the convention the rest of the page deliberately does not use. The default remains spaced paragraphs with no indent, and this class is the only way to get the other one.

Lists keep their own margin here, as they do everywhere else, so they do not butt against the paragraph above even though the paragraphs themselves carry none.

A list inside the indented container
Second item

Proof-test scorecard

P1 ObservabilityPassdirectly measured P2 MechanismPartialsurrogate endpoint P3 PredictionFailedmodel output, not measurement P4 CoherenceN/Anot assessed Full verdict spans all three columns for a summary line.

A longer graded list takes a real table instead of .scorecard. A row that rolls up sub-rows rather than carrying its own verdict, method 1 below, still gets a .verdict verdict-neutral badge reading See below, never bare punctuation: a badge next to every other row's badge is what makes the rollup read as deliberate instead of as a rendering gap.

Proof-test scorecard, table form
#	Method	Verdict	Bearing
1	Five principles	See below	see P1-P2
	· P1 Observability	Pass	directly measured
	· P2 Mechanism	Partial	surrogate endpoint
2	Charge gate	N/A	not assessed
	Summary	1 Pass, 1 Partial	1 not assessed

Navigation index components

4 entries

Subfolder group 1

grouped item Tier 2

Connections edge-list

Antecedents

Descendants

later node one

Two-column citation list

First source, flows into balanced columns on wide screens.
Second source.
Third source.
Fourth source.

Mermaid diagram (click to zoom)

flowchart TD
  accTitle: Decision flow sample
  accDescr: Start leads to a decision; yes does the thing, no skips it, and both reach done.
  A[Start] --> B{Decision}
  B -->|yes| C[Do the thing]
  B -->|no| D[Skip it]
  C --> E[Done]
  D --> E

Caption tiersA figure caption sits in the annotation register and stays start-aligned under a centred diagram.Source: the flowchart above, rendered at the template's pinned Mermaid version.

sequenceDiagram
  accTitle: Sequence diagram sample
  accDescr: The caller sends a request, the service stores it, and a note records that a label box must fit its own monospace text.
  participant C as Caller
  participant S as Service (long name)
  C->>S: Request with a fairly long label
  S->>S: Store it
  Note over S: This note is wider than the actor box.
Its rect must contain the rendered text.
  S->>C: Result

quadrantChart
  accTitle: Quadrant chart sample
  accDescr: Four labelled points near the chart edges, where long labels would otherwise be clipped by the fixed chart viewBox.
  x-axis Narrow --> Wide
  y-axis Shallow --> Deep
  quadrant-1 Best of both
  quadrant-2 Deep but narrow
  quadrant-3 Neither yet
  quadrant-4 Wide but shallow
  A label long enough to reach past the edge: [0.9, 0.9]
  Another deliberately overlong point label: [0.1, 0.1]

packet-beta
  accTitle: Packet diagram sample
  accDescr: A UDP header split into four labelled byte ranges, styled through dracula-nineties.css because mermaid's own packet themeVariables are a documented no-op.
  title UDP Header
  0-15: "Source Port"
  16-31: "Destination Port"
  32-47: "Length"
  48-63: "Checksum"

usecase-beta
  accTitle: Use case diagram sample
  accDescr: A reader actor reaching a system boundary that groups a use case and the diagram zoom it includes.
  direction LR
  actor Reader
  systemBoundary Site
    Read("Read page")
    Zoom("Zoom diagram")
  end
  Reader --> Read
  Read ..> : include Zoom

The pie chart is the only diagram type that paints text directly onto a --data-* fill, so it carries its own pieSectionTextColor per palette and pins pieOpacity to 1. Mermaid's stock 0.7 composited every slice toward the card, and its single textColor is the wrong end of the ramp in one palette or the other (see NOTES.md, Diagram types).

pie showData
  accTitle: Pie chart sample
  accDescr: Four payload files as a share of the template's bytes, drawn from the data ramp, with each slice's percentage painted inside the slice.
  title Payload bytes by file
  "dracula-nineties.css" : 52
  "mermaid.js" : 21
  "filter.js" : 15
  "mermaid-palette.json" : 12