bbb2f41591
- 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.
86 lines
2.2 KiB
Markdown
86 lines
2.2 KiB
Markdown
---
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name: layout-position
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description: Controlling element positioning with static, relative, absolute, fixed, and sticky utilities
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---
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# Position
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Utilities for controlling how an element is positioned in the document.
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## Usage
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### Static positioning
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Use `static` to position an element according to the normal flow. Offsets are ignored and it won't act as a position reference for absolutely positioned children:
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```html
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<div class="static">
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<p>Static parent</p>
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<div class="absolute bottom-0 left-0">
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<p>Absolute child</p>
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</div>
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</div>
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```
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### Relative positioning
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Use `relative` to position an element in normal flow. Offsets are calculated relative to the element's normal position, and it acts as a position reference for absolutely positioned children:
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```html
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<div class="relative">
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<p>Relative parent</p>
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<div class="absolute bottom-0 left-0">
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<p>Absolute child</p>
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</div>
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</div>
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```
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### Absolute positioning
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Use `absolute` to position an element outside the normal flow. Neighboring elements act as if it doesn't exist. Offsets are calculated relative to the nearest positioned parent:
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```html
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<div class="relative">
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<div class="absolute top-0 right-0">
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<p>Absolute child</p>
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</div>
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</div>
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```
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### Fixed positioning
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Use `fixed` to position an element relative to the browser window. Offsets are calculated relative to the viewport:
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```html
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<div class="fixed top-0 right-0 left-0">
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<p>Fixed header</p>
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</div>
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```
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### Sticky positioning
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Use `sticky` to position an element as `relative` until it crosses a threshold, then treat it as `fixed` until its parent is off screen:
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```html
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<div>
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<div class="sticky top-0">
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<p>Sticky header</p>
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</div>
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<div>Content...</div>
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</div>
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```
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## Key Points
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- `static` is the default - elements flow normally
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- `relative` maintains normal flow but allows offsets and becomes a positioning context
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- `absolute` removes from flow and positions relative to nearest positioned ancestor
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- `fixed` positions relative to viewport, stays in place when scrolling
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- `sticky` combines relative and fixed behavior based on scroll position
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- Always use with offset utilities like `top-0`, `right-0`, `inset-0`, etc.
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<!--
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Source references:
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- https://tailwindcss.com/docs/position
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-->
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