<figure> : The Figure with Caption Element

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Summary
Usage
Supported Attributes
- Standard HTML Attributes
- Data Binding Attributes
CSS Style Support
Notes
Examples
See Also

Summary

The <figure> element represents self-contained content, typically with a caption, that is referenced as a single unit from the main content. It is a semantic block-level element designed for encapsulating images, diagrams, code listings, illustrations, charts, or other content that can be moved away from the main flow without affecting the document’s meaning.

Usage

The <figure> element creates a semantic container for figures that:

Encapsulates self-contained content like images, diagrams, illustrations, code, or charts
Works in conjunction with <figcaption> to provide captions
Displays as a block-level element with distinctive margins
Has default margins: 1em top/bottom, 40pt left/right for visual indentation
Takes full width of its parent container (minus margins)
Can contain any content: images, videos, code blocks, tables, or multiple elements
Supports all CSS styling properties for positioning, sizing, and decoration
Can generate PDF bookmarks/outlines when a title attribute is set
Ideal for creating numbered figures with captions in reports and documentation

<figure>
    <img src="diagram.png" alt="System Architecture" style="width: 100%;"/>
    <figcaption>Figure 1: System Architecture Overview</figcaption>
</figure>

Supported Attributes

Standard HTML Attributes

Attribute	Type	Description
`id`	string	Unique identifier for the element. Used for styling and internal references.
`class`	string	CSS class name(s) for styling. Multiple classes separated by spaces.
`style`	string	Inline CSS styles applied directly to the element.
`title`	string	Sets the outline/bookmark title in the PDF document.
`hidden`	string	Controls visibility. Set to “hidden” to hide the element, or omit/empty to show.

Data Binding Attributes

Attribute	Type	Description
`data-content`	expression	Dynamically sets the content of the address element from bound data.
`data-content-type`	Mime Type	Specifies the type of bound content fragment - XHTML; HTML; Markdown.
`data-content-action`	Replace, Append, Prepend	Specifies the action to take when binding elements with existing inner content.

CSS Style Support

The <figure> element supports extensive CSS styling through the style attribute or CSS classes:

Box Model:

width, height, min-width, max-width, min-height, max-height
margin, margin-top, margin-right, margin-bottom, margin-left
padding, padding-top, padding-right, padding-bottom, padding-left
border, border-width, border-color, border-style
border-top, border-right, border-bottom, border-left

Positioning:

position: static, relative, absolute
display: block, inline, inline-block, none
float: left, right, none
clear: both, left, right, none

Layout:

page-break-before, page-break-after, page-break-inside

Visual Styling:

background, background-color, background-image
color (text color)
opacity
text-align (for centering captions and content)

Typography (inherited by child text):

font-family, font-size, font-weight, font-style
line-height, letter-spacing

Notes

Default Styling

The <figure> element has distinctive default styling to separate figures from main content:

HTML figure (Scryber.Html.Components.HTMLFigure):

Top Margin: 1em
Bottom Margin: 1em
Left Margin: 40pt
Right Margin: 40pt
Display: Block

These margins provide visual indentation and spacing that distinguishes figures from surrounding content, similar to traditional print layouts.

Semantic Meaning and Purpose

The <figure> element provides semantic meaning to self-contained content:

Self-Contained Content: Content that can be moved to an appendix or sidebar without affecting document meaning
Captionable Content: Typically includes a <figcaption> element for description or numbering
Referenced Content: Often referenced from main text (e.g., “see Figure 1”)
Related Content: Content related to main flow but not essential to understanding it

Using figcaption

The <figcaption> element represents the caption for its parent <figure>:

Can appear as the first or last child of <figure>
Only one <figcaption> per <figure>
Contains descriptive text, figure numbers, or attribution
Can contain inline elements and formatting

<figure>
    <figcaption>Figure 1: Before transformation</figcaption>
    <img src="before.png" alt="Before"/>
</figure>

When to Use Figure

Use <figure> when:

Displaying images, diagrams, or illustrations with captions
Showing code examples with descriptive titles
Presenting charts, graphs, or data visualizations
Including quotations with attribution (alternative to blockquote)
Displaying poems or verses as self-contained units
Creating numbered figures in technical documentation

Do NOT use <figure> for:

Decorative images without captions
Images that are integral to understanding the surrounding text
Simple content grouping (use <div> instead)

Common Content Types

Typical content for figure elements includes:

Images with captions (<img> + <figcaption>)
Code listings with titles (<pre> + <figcaption>)
Tables with captions (alternative to <table><caption>)
Multiple related images in a grid
SVG diagrams or illustrations
Charts and data visualizations
Video elements with descriptions

Accessibility

For accessibility:

Use descriptive alt text on images within figures
Ensure captions provide meaningful descriptions
Use semantic structure (figure + figcaption) for assistive technologies

Class Hierarchy

In the library codebase:

HTMLFigure extends HTMLDiv extends Panel extends VisualComponent
HTMLFigureCaption extends HTMLDiv extends Panel extends VisualComponent
Both inherit all container functionality from HTMLDiv
Figure applies distinctive margins for visual separation

Examples

Basic Figure with Image

<figure>
    <img src="architecture.png" alt="System Architecture" style="width: 100%;"/>
    <figcaption>Figure 1: High-level system architecture diagram</figcaption>
</figure>

Figure with Styled Caption

<figure style="border: 1pt solid #ddd; padding: 15pt; margin: 20pt 0;">
    <img src="chart.png" alt="Sales Chart" style="width: 100%; display: block;"/>
    <figcaption style="margin-top: 10pt; text-align: center;
                       font-style: italic; color: #666; font-size: 10pt;">
        Figure 2: Quarterly sales performance for 2025
    </figcaption>
</figure>

Code Listing as Figure

<figure style="margin: 20pt 0;">
    <figcaption style="font-weight: bold; margin-bottom: 5pt;">
        Listing 1: Basic authentication implementation
    </figcaption>
    <pre style="background-color: #f5f5f5; padding: 15pt;
                border: 1pt solid #ddd; font-size: 9pt;">
function authenticate(username, password) {
    const hash = createHash(password);
    return validateCredentials(username, hash);
}
    </pre>
</figure>

Multiple Images in Figure

<figure style="text-align: center; page-break-inside: avoid;">
    <div style="display: inline-block; width: 48%; margin: 1%;">
        <img src="before.png" alt="Before" style="width: 100%; border: 1pt solid #ccc;"/>
        <div style="font-size: 9pt; margin-top: 5pt;">Before</div>
    </div>
    <div style="display: inline-block; width: 48%; margin: 1%;">
        <img src="after.png" alt="After" style="width: 100%; border: 1pt solid #ccc;"/>
        <div style="font-size: 9pt; margin-top: 5pt;">After</div>
    </div>
    <figcaption style="margin-top: 15pt; font-style: italic;">
        Figure 3: Comparison of interface before and after redesign
    </figcaption>
</figure>

Figure with Background and Border

<figure style="background-color: #f9f9f9; border-left: 4pt solid #336699;
               padding: 20pt; margin: 25pt 0;">
    <img src="workflow.png" alt="Workflow Diagram" style="width: 100%; display: block;"/>
    <figcaption style="margin-top: 15pt; font-size: 10pt; line-height: 1.5;">
        <strong>Figure 4:</strong> Complete workflow from data ingestion through
        processing to final output delivery.
    </figcaption>
</figure>

Figure with Table

<figure>
    <figcaption style="font-weight: bold; margin-bottom: 10pt;">
        Table 1: Performance comparison across platforms
    </figcaption>
    <table style="width: 100%; border-collapse: collapse;">
        <thead>
            <tr style="background-color: #f0f0f0;">
                <th style="border: 1pt solid #ddd; padding: 8pt;">Platform</th>
                <th style="border: 1pt solid #ddd; padding: 8pt;">Speed (ms)</th>
                <th style="border: 1pt solid #ddd; padding: 8pt;">Memory (MB)</th>
            </tr>
        </thead>
        <tbody>
            <tr>
                <td style="border: 1pt solid #ddd; padding: 8pt;">Windows</td>
                <td style="border: 1pt solid #ddd; padding: 8pt;">45</td>
                <td style="border: 1pt solid #ddd; padding: 8pt;">128</td>
            </tr>
            <tr>
                <td style="border: 1pt solid #ddd; padding: 8pt;">Linux</td>
                <td style="border: 1pt solid #ddd; padding: 8pt;">38</td>
                <td style="border: 1pt solid #ddd; padding: 8pt;">112</td>
            </tr>
        </tbody>
    </table>
</figure>

Floating Figure

<figure style="float: right; width: 250pt; margin: 0 0 15pt 15pt;">
    <img src="product.png" alt="Product Photo" style="width: 100%;
         border: 1pt solid #ddd;"/>
    <figcaption style="font-size: 9pt; text-align: center;
                       margin-top: 5pt; color: #666;">
        Figure 5: Latest product model
    </figcaption>
</figure>

<p>
    Main article text flows around the floating figure, creating an
    integrated layout where the image relates to the surrounding content...
</p>
<p>
    Additional paragraphs continue to flow naturally around the figure...
</p>

Figure with Citation/Attribution

<figure style="margin: 25pt 60pt; text-align: center;">
    <img src="historical-photo.jpg" alt="Historical Photograph"
         style="width: 100%; max-width: 400pt;"/>
    <figcaption style="margin-top: 10pt; font-size: 9pt; line-height: 1.5;">
        <strong>Figure 6:</strong> Downtown Manhattan, circa 1920<br/>
        <span style="color: #666; font-style: italic;">
            Source: National Archives, Photo ID: 123456
        </span>
    </figcaption>
</figure>

Figure with Data Binding

<!-- With model.figures = [
    { number: 1, title: "Architecture", image: "arch.png", description: "System overview" },
    { number: 2, title: "Workflow", image: "flow.png", description: "Process flow" }
] -->

<template data-bind="{{model.figures}}">
    <figure style="page-break-inside: avoid; margin-bottom: 30pt;">
        <img src="{{.image}}" alt="{{.title}}" style="width: 100%;"/>
        <figcaption style="text-align: center; margin-top: 10pt; font-style: italic;">
            Figure {{.number}}: {{.description}}
        </figcaption>
    </figure>
</template>

Figure for Mathematical Diagram

<figure style="text-align: center; margin: 30pt 80pt;">
    <div style="background-color: #f9f9f9; padding: 30pt; border: 1pt solid #ddd;">
        <pre style="font-size: 12pt; display: inline-block; text-align: center;">
        y = mx + b

        where:
        m = slope
        b = y-intercept
        </pre>
    </div>
    <figcaption style="margin-top: 15pt; font-style: italic;">
        Equation 1: Linear function in slope-intercept form
    </figcaption>
</figure>

Figure with Screenshot and Annotations

<figure style="border: 2pt solid #336699; padding: 15pt; margin: 20pt 0;
               background-color: #f0f8ff;">
    <img src="screenshot.png" alt="Application Screenshot" style="width: 100%;"/>
    <figcaption style="margin-top: 12pt;">
        <strong style="color: #336699;">Figure 7: User Interface Overview</strong>
        <ul style="margin: 8pt 0 0 20pt; font-size: 9pt; line-height: 1.6;">
            <li>Navigation menu (left sidebar)</li>
            <li>Main content area (center)</li>
            <li>Properties panel (right sidebar)</li>
        </ul>
    </figcaption>
</figure>

Figure in Scientific Document

<figure style="page-break-inside: avoid; margin: 25pt 0;">
    <img src="experimental-results.png" alt="Experimental Results"
         style="width: 100%; border: 1pt solid #ccc;"/>
    <figcaption style="margin-top: 12pt; font-size: 10pt; line-height: 1.6;">
        <strong>Figure 8.</strong> Effect of temperature on reaction rate.
        Error bars represent standard deviation (n=3).
        Statistical significance: *p&lt;0.05, **p&lt;0.01.
    </figcaption>
</figure>

Figure with Logo and Description

<figure style="text-align: center; margin: 20pt auto; max-width: 300pt;">
    <img src="company-logo.png" alt="Company Logo" style="width: 200pt;"/>
    <figcaption style="margin-top: 15pt; font-size: 9pt; color: #666;
                       text-align: center; line-height: 1.5;">
        Corporate logo representing our commitment to innovation and quality.
        Designed by Studio XYZ, 2025.
    </figcaption>
</figure>

Figure with Numbered Series

<div style="column-count: 2; column-gap: 20pt;">
    <figure style="break-inside: avoid; margin-bottom: 20pt;
                   border: 1pt solid #e0e0e0; padding: 10pt;">
        <img src="step1.png" alt="Step 1" style="width: 100%;"/>
        <figcaption style="margin-top: 8pt; font-size: 9pt; text-align: center;">
            <strong>Step 1:</strong> Initial configuration
        </figcaption>
    </figure>

    <figure style="break-inside: avoid; margin-bottom: 20pt;
                   border: 1pt solid #e0e0e0; padding: 10pt;">
        <img src="step2.png" alt="Step 2" style="width: 100%;"/>
        <figcaption style="margin-top: 8pt; font-size: 9pt; text-align: center;">
            <strong>Step 2:</strong> Data processing
        </figcaption>
    </figure>
</div>

Figure with Quote (Alternative to Blockquote)

<figure style="margin: 30pt 60pt; text-align: center;">
    <blockquote style="font-size: 14pt; font-style: italic;
                       border: none; margin: 0; padding: 20pt;">
        "Innovation distinguishes between a leader and a follower."
    </blockquote>
    <figcaption style="margin-top: 15pt; font-size: 10pt;">
        — Steve Jobs, Apple Inc.
    </figcaption>
</figure>

Technical Diagram Figure

<figure style="background-color: #ffffff; border: 2pt solid #333;
               padding: 20pt; margin: 25pt 0; page-break-inside: avoid;">
    <div style="text-align: center;">
        <img src="network-diagram.png" alt="Network Topology"
             style="width: 100%; max-width: 500pt;"/>
    </div>
    <figcaption style="border-top: 1pt solid #ccc; padding-top: 12pt;
                       margin-top: 15pt; font-size: 10pt;">
        <strong>Figure 9: Enterprise Network Topology</strong>
        <p style="margin: 8pt 0 0 0; line-height: 1.5; color: #555;">
            This diagram illustrates the complete network architecture including
            DMZ, internal networks, and cloud integration points. Firewall rules
            and VPN connections are indicated by red and green lines respectively.
        </p>
    </figcaption>
</figure>

Figure Gallery Layout

<figure style="margin: 30pt 0;">
    <figcaption style="font-size: 12pt; font-weight: bold; margin-bottom: 15pt;">
        Figure 10: Product Evolution Timeline
    </figcaption>
    <div style="display: table; width: 100%; table-layout: fixed;">
        <div style="display: table-row;">
            <div style="display: table-cell; padding: 5pt; width: 25%;">
                <img src="v1.png" alt="Version 1" style="width: 100%;"/>
                <div style="text-align: center; font-size: 8pt; margin-top: 3pt;">2020</div>
            </div>
            <div style="display: table-cell; padding: 5pt; width: 25%;">
                <img src="v2.png" alt="Version 2" style="width: 100%;"/>
                <div style="text-align: center; font-size: 8pt; margin-top: 3pt;">2022</div>
            </div>
            <div style="display: table-cell; padding: 5pt; width: 25%;">
                <img src="v3.png" alt="Version 3" style="width: 100%;"/>
                <div style="text-align: center; font-size: 8pt; margin-top: 3pt;">2024</div>
            </div>
            <div style="display: table-cell; padding: 5pt; width: 25%;">
                <img src="v4.png" alt="Version 4" style="width: 100%;"/>
                <div style="text-align: center; font-size: 8pt; margin-top: 3pt;">2025</div>
            </div>
        </div>
    </div>
</figure>