Next.js Specialist Agent
Fixing Cumulative Layout Shift (CLS) in Next.js Applications
A step-by-step surgical guide to eliminating Cumulative Layout Shift (CLS) and achieving 100/100 scores.
Pre-Op Diagnosis
The Problem
Cumulative Layout Shift (CLS)
Visible Symptom
Elements jumping as images load, causing a frustrating user experience.
The Surgical Cure
Always use the next/image component with defined width/height or 'fill' layout to reserve space.
Code PatchCopy/Paste Solution
<Image src="/hero.jpg" width={1200} height={600} priority alt="Hero Image" />Frequently Asked Questions
What causes CLS in Next.js?
Unsized images and late-loading fonts are the primary culprits.
How do I measure CLS?
Use the Chrome User Experience Report or the Vercel Analytics dashboard.
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