Greenshift Blocks

name: greenshift-blocks description: Generate WordPress Gutenberg blocks using Greenshift/GreenLight plugin. Use when user asks to create WordPress sections, blocks, layouts, hero sections, galleries, or any Gutenberg element. Triggers on keywords: wordpress, gutenberg, greenshift, section, block, layout, hero, gallery, columns, element.

Greenshift Block Generator

Purpose

Generate production-ready WordPress Gutenberg blocks using Greenshift/GreenLight Element block system. All output is HTML with JSON parameters in block comments - ready to paste directly into WordPress Gutenberg code editor.

Documentation Structure

Detailed documentation is split into modular files in the docs/ directory:

Read relevant docs files when you need detailed information on specific topics.

IMPORTANT: Always read docs/12-migration-rules.md when migrating or cloning blocks - it contains critical rules about what styles to REMOVE.

Quick Reference

Core Block Structure

Every Greenshift element follows this pattern:

<!-- wp:greenshift-blocks/element {JSON Parameters} -->
<html_tag class="optional classes" ...attributes>
  <!-- Inner content -->
</html_tag>
<!-- /wp:greenshift-blocks/element -->

Critical Rules

1. Block IDs: Unique id starting with gsbp- + 7 alphanumeric chars (e.g., gsbp-b3c761b). localId must be identical to id.

2. Content Types (type parameter):

   • "text": Text-only blocks - requires textContent with duplicated text
   • "inner": Container blocks - wrap plain text in <span> element blocks
   • "no": Empty/spacer elements
   • "chart": ApexCharts

3. Styling (styleAttributes):

   • Never use inline style="..." attributes
   • Properties use camelCase (e.g., backgroundColor, paddingTop)
   • Values are arrays for responsive: ["desktop", "tablet", "mobile_landscape", "mobile_portrait"]
   • Single value ["10px"] applies to all breakpoints
   • Pseudo-states: backgroundColor_hover, color_focus
   • If styleAttributes exists, add localId to HTML class attribute

4. HTML Tags: Default is div. Prefer tag: "a" over tag: "button" for buttons (except forms).

5. Images: Always loading="lazy". Use https://placehold.co/WIDTHxHEIGHT. When using originalWidth and originalHeight in JSON, you MUST also add matching width and height HTML attributes to the <img> tag.

6. Links: linkNewWindow: true = target="_blank" + auto rel="noopener"

7. Column Children with Padding: Always add boxSizing: ["border-box"] to column children that have padding. Without this, padding adds to width and causes columns to wrap unexpectedly. See docs/03-layouts.md for details.

See docs/01-core-structure.md and docs/02-attributes.md for full details.

Minimal Intervention Philosophy

Core Principle: Less is More

When generating or migrating blocks, apply minimal styling intervention. Let the WordPress theme handle defaults.

See docs/12-migration-rules.md for comprehensive migration-specific rules.

What NOT to Do

Typography Rules (CRITICAL)

Headings (h1, h2, h3, h4, h5, h6) - NEVER SET:

• fontSize - theme handles heading sizes (even responsive ones)
• fontWeight - theme handles heading weights
• color - theme handles text colors (unless on dark background)
• lineHeight - theme handles heading line-heights

Headings - OKAY TO SET:

• marginTop, marginBottom - for spacing control
• textAlign - for layout/centering

WRONG - Over-styled heading:

{
  "tag": "h2",
  "styleAttributes": {
    "fontSize": ["3rem", "2.7rem"],
    "fontWeight": ["700"],
    "lineHeight": ["1.2"]
  }
}

CORRECT - Minimal heading:

{
  "tag": "h2",
  "styleAttributes": {
    "marginBottom": ["1rem"],
    "textAlign": ["center"]
  }
}

Paragraphs and text - NEVER SET:

• color - unless on dark/colored background
• fontWeight: ["400"] or fontWeight: ["normal"] - these are defaults
• lineHeight - unless custom fontSize requires adjustment

Paragraphs and text - OKAY TO SET:

• fontSize - ONLY for intentional accent/lead text (e.g., ["1.2rem"])
• fontFamily - for specific font choices
• fontWeight: ["700"] - for intentionally bold body text
• maxWidth - for constraining text width

Exception - Text on dark backgrounds: When text is over a dark background (hero overlays, dark sections, card overlays):

• White text: "color":["var(--wp--preset--color--white, #ffffff)"]
• Semi-transparent white: "color":["rgba(255,255,255,0.9)"]

Semantic Heading Hierarchy

Use proper HTML heading levels based on content structure:

h1 - Page title (usually in theme header)
h2 - Main section titles (one per section)
h3 - Subsection/card titles
h4 - Minor headings within cards/subsections

Example - Step Cards:

• Section intro: h2
• Grid/subsection title: h3
• Individual step headings: h4

DON'T: Use multiple h2s in same section or h3 for minor card headings.

Background Colors - Use Theme Palette

WRONG - Generic variables:

"backgroundColor": ["var(--wp--preset--color--white, #ffffff)"]
"backgroundColor": ["var(--wp--preset--color--light-grey, #f8f8f8)"]

CORRECT - Theme palette:

"backgroundColor": ["var(--wp--preset--color--palette-color-6, var(--theme-palette-color-6, #f5f5f4))"]
"backgroundColor": ["var(--wp--preset--color--palette-color-7, var(--theme-palette-color-7, #fafaf9))"]
"backgroundColor": ["var(--wp--preset--color--palette-color-8, var(--theme-palette-color-8, #fffffe))"]

Palette colors (6, 7, 8) adapt to user's theme settings. Generic colors override theme customization.

When TO Style

• Text on dark backgrounds - white/light colors needed for readability
• Structural necessity - flexbox layouts, positioning
• Spacing control - gaps between sections, margins for element separation
• Explicit design override - screenshot shows specific non-default styling

Hardcoded Values vs CSS Variables

WRONG - Over-styled:

{
  "styleAttributes": {
    "fontSize": ["16px"],
    "fontWeight": ["400"],
    "lineHeight": ["1.5"],
    "color": ["#333333"],
    "marginBottom": ["20px"]
  }
}

CORRECT - Minimal:

{
  "styleAttributes": {
    "marginBottom": ["var(--wp--preset--spacing--50)"]
  }
}

Or even better - no styleAttributes at all if theme defaults are acceptable.

Column/Flexbox Spacing

For column gaps, use CSS variables:

{
  "styleAttributes": {
    "columnGap": ["var(--wp--preset--spacing--60, 2rem)"],
    "rowGap": ["var(--wp--preset--spacing--60, 2rem)"]
  }
}

AVOID hardcoded gaps like "columnGap": ["25px"] unless specifically required.

Migration/Cloning Rule

When migrating or cloning:

1. Preserve structure - keep the layout working
2. Remove unnecessary styles - strip redundant fontSize, fontWeight, color
3. Convert hardcoded to variables - but only if the value is being kept
4. Don't add styles - if original didn't have it, don't add it

Block Types Guide

Always Use GreenLight Element

Always use greenshift-blocks/element for most content. Convert old blocks to GreenLight Element:

Specialized Blocks (OK to use)

These specialized blocks are acceptable:

• greenshift-blocks/element - GreenLight Element (primary block)
• greenshift-blocks/swiper - Slider/carousel
• greenshift-blocks/querygrid - Query loop for posts
• greenshift-blocks/dynamic-post-image - Dynamic featured image
• greenshift-blocks/dynamic-post-title - Dynamic post title
• greenshift-blocks/meta - Post meta data

Heading Conversion Example

WRONG (old greenshift-blocks/heading):

<!-- wp:greenshift-blocks/heading {"id":"gsbp-xxx","headingContent":"Title","spacing":{...},"typography":{...}} -->
<h2 id="gspb_heading-id-gsbp-xxx" class="gspb_heading gspb_heading-id-gsbp-xxx">Title</h2>
<!-- /wp:greenshift-blocks/heading -->

CORRECT (GreenLight Element - minimal):

<!-- wp:greenshift-blocks/element {"id":"gsbp-xxx","textContent":"Title","tag":"h2","localId":"gsbp-xxx","styleAttributes":{"marginBottom":["var(\u002d\u002dwp\u002d\u002dpreset\u002d\u002dspacing\u002d\u002d50, 1.5rem)"]}} -->
<h2 class="gsbp-xxx">Title</h2>
<!-- /wp:greenshift-blocks/element -->

Key differences:

• Use textContent instead of headingContent
• Use tag:"h2" instead of default div
• NO fontSize - theme handles heading sizes
• NO color - theme handles text colors
• Only add marginBottom if spacing control needed
• Class is gsbp-xxx not gspb_heading gspb_heading-id-gsbp-xxx
• No id attribute in HTML, only class

SVG Icons Encoding

SVG content inside the JSON icon.icon.svg parameter MUST use Unicode escape sequences, not raw HTML or escaped quotes.

Character Encoding Table

Example

WRONG:

"icon":{"icon":{"svg":"<svg viewBox=\"0 0 24 24\"><path d=\"M8 12l2 2\"/></svg>"},...}

CORRECT:

"icon":{"icon":{"svg":"\u003csvg viewBox=\u00220 0 24 24\u0022\u003e\u003cpath d=\u0022M8 12l2 2\u0022/\u003e\u003c/svg\u003e"},...}

Card Design Pattern: Inset Rounded Images

When creating cards with images that have rounded corners INSIDE the card (with visible margin/padding around them):

Structure

Card Wrapper (white bg, border-radius: 15px, overflow: hidden)
├── Image Container (padding: 8px top/left/right, 0px bottom)
│   └── Image (border-radius: 10px on ALL 4 corners, object-fit: cover)
└── Footer/Label Area (padding for content)

Key Points

1. Card wrapper: overflow: hidden + larger border-radius (e.g., 15px)
2. Image container: padding on 3 sides, paddingBottom: 0px (no gap to footer)
3. Image itself: SMALLER border-radius than card (e.g., 10px) on ALL 4 corners
4. This creates the "inset" look where white card background shows as margin around image

Image styleAttributes for Inset Cards

"styleAttributes": {
  "width": ["100%"],
  "aspectRatio": ["16/10"],
  "objectFit": ["cover"],
  "borderTopLeftRadius": ["var(--wp--custom--border-radius--small, 10px)"],
  "borderTopRightRadius": ["var(--wp--custom--border-radius--small, 10px)"],
  "borderBottomLeftRadius": ["var(--wp--custom--border-radius--small, 10px)"],
  "borderBottomRightRadius": ["var(--wp--custom--border-radius--small, 10px)"],
  "borderRadiusLink_Extra": true
}

Common CSS Variables

Font Sizes

var(--wp--preset--font-size--mini, 11px)
var(--wp--preset--font-size--xs, 0.85rem)
var(--wp--preset--font-size--s, 1rem)
var(--wp--preset--font-size--m, 1.35rem)
var(--wp--preset--font-size--l, 1.55rem)
var(--wp--preset--font-size--xl, clamp(1.6rem, 2.75vw, 1.9rem))
var(--wp--preset--font-size--grand, clamp(2.2rem, 4vw, 2.8rem))
var(--wp--preset--font-size--giga, clamp(3rem, 5vw, 4.5rem))
var(--wp--preset--font-size--giant, clamp(3.2rem, 6.2vw, 6.5rem))

Spacing

var(--wp--preset--spacing--40, 1rem)
var(--wp--preset--spacing--50, 1.5rem)
var(--wp--preset--spacing--60, 2.25rem)
var(--wp--preset--spacing--70, 3.38rem)
var(--wp--preset--spacing--80, 5.06rem)

Border Radius

var(--wp--custom--border-radius--mini, 5px)
var(--wp--custom--border-radius--small, 10px)
var(--wp--custom--border-radius--medium, 15px)
var(--wp--custom--border-radius--large, 20px)

Shadows & Transitions

var(--wp--preset--shadow--soft, 0px 15px 30px 0px rgba(119, 123, 146, 0.1))
var(--wp--preset--shadow--elegant, 0px 5px 23px 0px rgba(188, 207, 219, 0.35))
var(--wp--custom--transition--ease, all 0.5s ease)
var(--wp--custom--transition--smooth, all 1s cubic-bezier(0.66,0,0.34,1))

See docs/09-css-variables.md for complete list.

Common Patterns

Page Wrapper (for multi-section pages)

ALWAYS wrap full pages in a single container. This is critical for controlling spacing.

Why Page Wrapper is essential:

• Eliminates unwanted gaps - WordPress/themes often add margins between blocks
• Unified control - one place to manage page-level spacing
• Prevents theme interference - overrides default block margins
• Consistent structure - predictable behavior across themes

<!-- wp:greenshift-blocks/element {"id":"gsbp-page001","type":"inner","localId":"gsbp-page001","align":"full","styleAttributes":{"marginBlockStart":["0px"]},"metadata":{"name":"Page Wrapper"}} -->
<div class="gsbp-page001 alignfull">
  <!-- All sections go here -->
</div>
<!-- /wp:greenshift-blocks/element -->

Key points:

• align:"full" in JSON + alignfull in HTML class
• marginBlockStart:["0px"] removes top margin forced by themes
• All section wrappers go inside this container
• Sections inside should NOT have extra top/bottom margins

Full-Width Section Wrapper

<!-- wp:greenshift-blocks/element {"id":"gsbp-XXXXXXX","tag":"section","type":"inner","localId":"gsbp-XXXXXXX","align":"full","styleAttributes":{"display":["flex"],"justifyContent":["center"],"flexDirection":["column"],"alignItems":["center"],"paddingRight":["var(\u002d\u002dwp\u002d\u002dcustom\u002d\u002dspacing\u002d\u002dside, min(3vw, 20px))"],"paddingLeft":["var(\u002d\u002dwp\u002d\u002dcustom\u002d\u002dspacing\u002d\u002dside, min(3vw, 20px))"],"paddingTop":["var(\u002d\u002dwp\u002d\u002dpreset\u002d\u002dspacing\u002d\u002d80, 5rem)"],"paddingBottom":["var(\u002d\u002dwp\u002d\u002dpreset\u002d\u002dspacing\u002d\u002d80, 5rem)"],"marginBlockStart":["0px"]},"isVariation":"contentwrapper"} -->
<section class="gsbp-XXXXXXX alignfull">
  <!-- Content Area -->
</section>
<!-- /wp:greenshift-blocks/element -->

Content Area (Centered Container)

IMPORTANT: Use content-size (not wide-size) for content width:

<!-- wp:greenshift-blocks/element {"id":"gsbp-XXXXXXX","type":"inner","localId":"gsbp-XXXXXXX","styleAttributes":{"maxWidth":["100%"],"width":["var(\u002d\u002dwp\u002d\u002dstyle\u002d\u002dglobal\u002d\u002dcontent-size, 1290px)"]},"isVariation":"nocolumncontent","metadata":{"name":"Content Area"}} -->
<div class="gsbp-XXXXXXX">
  <!-- Inner content -->
</div>
<!-- /wp:greenshift-blocks/element -->

Two-Column Layout

<!-- wp:greenshift-blocks/element {"id":"gsbp-XXXXXXX","type":"inner","localId":"gsbp-XXXXXXX","styleAttributes":{"display":["flex"],"flexColumns_Extra":2,"flexWidths_Extra":{"desktop":{"name":"50/50","widths":[50,50]},"tablet":{"name":"50/50","widths":[50,50]},"mobile":{"name":"100/100","widths":[100,100]}},"flexDirection":["row"],"columnGap":["var(\u002d\u002dwp\u002d\u002dpreset\u002d\u002dspacing\u002d\u002d60, 2rem)"],"rowGap":["var(\u002d\u002dwp\u002d\u002dpreset\u002d\u002dspacing\u002d\u002d60, 2rem)"],"flexWrap":["wrap"]},"isVariation":"contentarea"} -->
<div class="gsbp-XXXXXXX">
  <!-- Column 1 -->
  <!-- Column 2 -->
</div>
<!-- /wp:greenshift-blocks/element -->

See docs/03-layouts.md for more layout patterns.

Heading with Animation

<!-- wp:greenshift-blocks/element {"id":"gsbp-XXXXXXX","textContent":"Your Heading","tag":"h2","animation":{"duration":800,"easing":"ease","type":"fade-up","onlyonce":true},"localId":"gsbp-XXXXXXX","styleAttributes":{"marginBottom":["var(\u002d\u002dwp\u002d\u002dpreset\u002d\u002dspacing\u002d\u002d50, 1.5rem)"]}} -->
<h2 data-aos="fade-up" data-aos-easing="ease" data-aos-duration="800" data-aos-once="true" class="gsbp-XXXXXXX">Your Heading</h2>
<!-- /wp:greenshift-blocks/element -->

Note: No fontSize or color on heading - theme handles typography. Only marginBottom for spacing.

See docs/05-animations.md for all animation options.

Button/Link

<!-- wp:greenshift-blocks/element {"id":"gsbp-XXXXXXX","textContent":"Click Here","tag":"a","localId":"gsbp-XXXXXXX","href":"#","styleAttributes":{"display":["inline-flex"],"paddingTop":["var(\u002d\u002dwp\u002d\u002dcustom\u002d\u002dbutton\u002d\u002dspacing\u002d\u002dvertical, 1rem)"],"paddingBottom":["var(\u002d\u002dwp\u002d\u002dcustom\u002d\u002dbutton\u002d\u002dspacing\u002d\u002dvertical, 1rem)"],"paddingLeft":["var(\u002d\u002dwp\u002d\u002dcustom\u002d\u002dbutton\u002d\u002dspacing\u002d\u002dhorizontal, 2rem)"],"paddingRight":["var(\u002d\u002dwp\u002d\u002dcustom\u002d\u002dbutton\u002d\u002dspacing\u002d\u002dhorizontal, 2rem)"],"backgroundColor":["var(\u002d\u002dwp\u002d\u002dpreset\u002d\u002dcolor\u002d\u002dprimary, #000)"],"color":["#fff"],"borderRadius":["var(\u002d\u002dwp\u002d\u002dcustom\u002d\u002dborder-radius\u002d\u002dmedium, 15px)"],"textDecoration":["none"],"transition":["var(\u002d\u002dwp\u002d\u002dcustom\u002d\u002dtransition\u002d\u002dease, all 0.5s ease)"],"backgroundColor_hover":["var(\u002d\u002dwp\u002d\u002dpreset\u002d\u002dcolor\u002d\u002dsecondary, #333)"]}} -->
<a class="gsbp-XXXXXXX" href="#">Click Here</a>
<!-- /wp:greenshift-blocks/element -->

Image

<!-- wp:greenshift-blocks/element {"id":"gsbp-XXXXXXX","tag":"img","localId":"gsbp-XXXXXXX","src":"https://placehold.co/800x600","alt":"Description","originalWidth":800,"originalHeight":600,"styleAttributes":{"width":["100%"],"height":["auto"],"objectFit":["cover"],"borderRadius":["var(\u002d\u002dwp\u002d\u002dcustom\u002d\u002dborder-radius\u002d\u002dsmall, 10px)"]}} -->
<img class="gsbp-XXXXXXX" src="https://placehold.co/800x600" alt="Description" width="800" height="600" loading="lazy"/>
<!-- /wp:greenshift-blocks/element -->

Block Variations (isVariation)

Animation Options

Available animation.type values:

• fade, fade-up, fade-down, fade-left, fade-right
• zoom-in, zoom-in-up, zoom-in-down, zoom-out
• slide-up, slide-down, slide-left, slide-right
• flip-up, flip-down, flip-left, flip-right
• clip-right, clip-left, clip-up, clip-down

Animation parameters: duration (ms), delay (ms), easing, onlyonce (boolean)

See docs/05-animations.md for keyframe animations and scroll-linked animations.

Dynamic Content

For blocks displaying WordPress data (posts, users, taxonomies):

<!-- wp:greenshift-blocks/element {"id":"gsbp-xxx","textContent":"<dynamictext></dynamictext>","dynamictext":{"dynamicEnable":true,"dynamicType":"postdata","dynamicSource":"latest_item","dynamicPostData":"post_title"},"localId":"gsbp-xxx"} -->
<div class="gsbp-xxx"><dynamictext></dynamictext></div>
<!-- /wp:greenshift-blocks/element -->

See docs/07-dynamic-content.md for all dynamic types and query grids.

Slider Blocks

Use greenshift-blocks/swiper for image galleries and hero sliders.

CRITICAL: For image gallery slides, use greenshift-blocks/element with tag:"img" inside slider-content-zone. Do NOT put images directly in slider-image-wrapper.

See docs/06-slider.md for complete slider documentation and correct structure.

Design Detail Attention Checklist

Before generating output, verify these visual details from the reference design:

1. Border Radius

• Card/container radius vs image/inner element radius (usually different)
• Are corners rounded on all 4 sides or specific corners only?
• Is it subtle (5-10px), medium (15px), large (20-30px), or pill (50px+)?

2. Padding/Margins

• Is image edge-to-edge or inset with visible container background?
• Gap between image and footer/content below
• Internal padding of content areas

3. Image Handling

• Does image fill container (object-fit: cover) or maintain aspect ratio (object-fit: contain)?
• Does image have its own rounded corners separate from container?
• Aspect ratio of image area
• originalWidth/originalHeight in JSON → matching width/height in HTML

4. Shadows

• Subtle vs prominent shadow
• Shadow on card vs shadow on image

5. Background Relationships

• Section background vs card background vs image background
• Overlay effects or gradients

Output Validation Rules

Before outputting Greenshift blocks, verify these critical rules:

1. No HTML comments - Use metadata:{"name":"..."} instead of <!-- Section Name -->
2. Page wrapper required - Multi-section pages MUST be wrapped in element with align:"full" and <div class="... alignfull">
3. Image dimensions - When originalWidth/originalHeight in JSON, add matching width/height to HTML <img> tag
4. SVG attributes - Don't include fill="none" on outer <svg> element (WordPress strips it - put on <path> elements)
5. Slider images - Use greenshift-blocks/element blocks in slider-content-zone, NOT direct <img> in slider-image-wrapper
6. Slider swipe JSON - Use imageurl:"" (empty string), add bgContain:false

Output Requirements

• Return only the generated block code
• Block names: wp:greenshift-blocks/element (or specialized like swiper, querygrid)
• No explanations or surrounding text
• No HTML comments - WordPress strips them; use metadata:{"name":"..."} for organization
• Ready to paste directly into WordPress Gutenberg code editor
• Save output as .html files

Example Templates

Reference templates are in the templates/ directory:

• section-wrapper.html - Full-width section wrapper
• two-columns.html - Two-column responsive layout
• hero-section.html - Hero section with background
• card-grid.html - Card grid layout