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Fixed Video Format (9:16)
Fixed 1080x1920 pixel video format with percentage-based positioning. Use this when laying out video compositions, positioning elements on the canvas, or calculating dimensions. All videos render at exactly 9:16 aspect ratio for TikTok/Instagram Reels.
SKILL.md
Full skill instructions
Fixed Video Format (9:16)
This Skill provides Claude Code with specific guidance on how it should handle the fixed 9:16 video format.
When to use this skill:
- Positioning elements in any video composition
- Calculating element dimensions and coordinates
- Using VIDEO_CONFIG.width and VIDEO_CONFIG.height
- Defining safe zones for platform UI overlays
- Creating layouts optimized for vertical viewing
- Testing compositions in Remotion Studio preview
Instructions
- Fixed Dimensions: All videos render at exactly 1080x1920 pixels (9:16 portrait); no responsive design needed
- VIDEO_CONFIG Constants: Use
VIDEO_CONFIGfromsrc/lib/theme.tsfor width/height values - Percentage-Based Layout: Position elements using percentages of VIDEO_CONFIG dimensions for maintainability
- TikTok Optimization: Format optimized for TikTok/Instagram Reels vertical viewing
- Safe Zones: Keep important content within central 90% to account for platform UI overlays
- Consistent Aspect Ratio: All compositions must maintain 9:16 aspect ratio; test in Remotion Studio preview
Examples:
// Good: Use VIDEO_CONFIG, percentage-based positioning
import { VIDEO_CONFIG } from '@/lib/theme';
export const BookCover: React.FC = () => (
<img
src={coverUrl}
style={{
position: 'absolute',
top: VIDEO_CONFIG.height * 0.15, // 15% from top
left: VIDEO_CONFIG.width * 0.1, // 10% from left
width: VIDEO_CONFIG.width * 0.8, // 80% width
height: VIDEO_CONFIG.width * 0.8 * 1.5, // Maintain book aspect ratio
}}
/>
);
// Bad: Hardcoded pixels, no VIDEO_CONFIG reference
<img
style={{
position: 'absolute',
top: 300,
left: 100,
width: 800,
}}
/>
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