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zguiyang bbb2f41591 feat: add new OpenSpec skills for change management and onboarding

- Created `openspec-ff-change` skill for fast-forward artifact creation.
- Introduced `openspec-new-change` skill for structured change creation.
- Developed `openspec-onboard` skill for guided onboarding through OpenSpec workflow.
- Added `openspec-sync-specs` skill for syncing delta specs to main specs.
- Implemented `openspec-verify-change` skill for verifying implementation against change artifacts.
- Updated `.gitignore` to exclude OpenSpec generated files.
- Added `skills-lock.json` to manage skill dependencies.

2026-03-13 13:18:03 +08:00

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name, description

name	description
layout-margin	Controlling element margins with spacing scale, negative values, logical properties, and space utilities

Margin

Utilities for controlling an element's margin.

Usage

All sides

Use m-<number> to set margin on all sides:

<div class="m-4">Margin on all sides</div>
<div class="m-8">Larger margin</div>

Individual sides

Use mt-<number>, mr-<number>, mb-<number>, ml-<number>:

<div class="mt-6">Top margin</div>
<div class="mr-4">Right margin</div>
<div class="mb-8">Bottom margin</div>
<div class="ml-2">Left margin</div>

Horizontal and vertical

Use mx-<number> for horizontal, my-<number> for vertical:

<div class="mx-8">Horizontal margin</div>
<div class="my-8">Vertical margin</div>

Negative margins

Prefix with dash for negative values:

<div class="-mt-8">Negative top margin</div>
<div class="-mx-4">Negative horizontal margin</div>

Auto margins

Use m-auto or directional auto margins for centering:

<div class="mx-auto">Centered horizontally</div>
<div class="ml-auto">Pushed to right</div>

Logical properties

Use ms-<number> (margin-inline-start) and me-<number> (margin-inline-end) for RTL support:

<div dir="ltr">
  <div class="ms-8">Left margin in LTR</div>
  <div class="me-8">Right margin in LTR</div>
</div>
<div dir="rtl">
  <div class="ms-8">Right margin in RTL</div>
  <div class="me-8">Left margin in RTL</div>
</div>

Space between children

Use space-x-<number> or space-y-<number> to add margin between children:

<div class="flex space-x-4">
  <div>01</div>
  <div>02</div>
  <div>03</div>
</div>

<div class="flex flex-col space-y-8">
  <div>01</div>
  <div>02</div>
  <div>03</div>
</div>

Reversing space

Use space-x-reverse or space-y-reverse with reversed flex directions:

<div class="flex flex-row-reverse space-x-4 space-x-reverse">
  <div>01</div>
  <div>02</div>
  <div>03</div>
</div>

Custom values

Use arbitrary values for custom margins:

<div class="m-[5px]">Custom margin</div>
<div class="mx-[calc(50%-1rem)]">Custom calculation</div>

Key Points

Spacing scale: m-0 through m-96 (and beyond)
Negative: prefix with dash (-m-4, -mt-8, -mx-4)
Auto: m-auto, mx-auto, my-auto, mt-auto, etc.
Logical: ms-* (start), me-* (end) adapt to text direction
Space utilities: space-x-*, space-y-* add margin to all children except last
Space reverse: space-x-reverse, space-y-reverse for reversed flex layouts
Limitations: Space utilities don't work well with grids or complex layouts - use gap utilities instead

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