⚡ Bolt: Optimize background images in Sections 3, 4, and 5#87
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⚡ Bolt: Optimize background images in Sections 3, 4, and 5#87
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Convert CSS background images to Next.js `<Image />` components to enable automatic image optimization and caching. Co-authored-by: anyulled <100741+anyulled@users.noreply.github.com>
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Review Summary by QodoOptimize background images using Next.js Image components
WalkthroughsDescription• Convert CSS background images to Next.js Image components • Enable automatic image optimization and caching pipeline • Reduce unoptimized duplicate network requests across sections • Apply proper z-index and positioning for layered backgrounds Diagramflowchart LR
CSS["CSS backgroundImage<br/>properties"]
NextImage["Next.js Image<br/>components"]
Optimization["Automatic image<br/>optimization"]
Cache["WebP/AVIF<br/>caching"]
CSS -- "Convert to" --> NextImage
NextImage -- "Enables" --> Optimization
Optimization -- "Provides" --> Cache
File Changes1. components/sections/home8/section3.tsx
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Code Review by Qodo
1. Fill image lacks sizes
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Contributor
Summary of ChangesHello, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed! This pull request significantly enhances website performance by optimizing how background images are loaded. By migrating from traditional CSS background images to Next.js Highlights
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📝 WalkthroughWalkthroughReplaces CSS background-image usage with Next.js Image components in three home8 section components; updates Cypress selectors in two tests; removes a minimatch override in package.json; reformats a GitHub Actions scorecard workflow; and adjusts scorecard badge/report whitespace and formatting. Changes
Estimated code review effort🎯 3 (Moderate) | ⏱️ ~20 minutes Possibly related PRs
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CI Feedback 🧐A test triggered by this PR failed. Here is an AI-generated analysis of the failure:
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Contributor
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Code Review
This pull request correctly optimizes background images by replacing CSS background-image with the Next.js <Image> component, which will leverage Next.js's automatic image optimization and improve performance. The implementation is solid. I have one suggestion to abstract the new <Image> component into a reusable component to improve code maintainability, as the same logic is repeated across three different files.
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| {/* ⚡ Bolt: Using Next.js Image instead of CSS background-image to enable automatic image optimization and caching. Impact: Eliminates unoptimized duplicate network requests for this background image */} | ||
| <Image src="/assets/img/bg/header-bg20.png" alt="" fill style={{ objectFit: "cover", zIndex: -1 }} /> |
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To improve maintainability and reduce code duplication, consider creating a reusable BackgroundImage component. This <Image> tag with identical props is repeated in section3.tsx, section4.tsx, and section5.tsx.
This would encapsulate the background image logic, making future updates easier. For example:
// components/common/BackgroundImage.tsx
import Image from 'next/image';
interface BackgroundImageProps {
src: string;
alt?: string;
}
export const BackgroundImage = ({ src, alt = '' }: BackgroundImageProps) => (
<Image
src={src}
alt={alt}
fill
style={{ objectFit: 'cover', zIndex: -1 }}
/>
);You could then use it as <BackgroundImage src="/assets/img/bg/header-bg20.png" /> in your section components. This would make the code cleaner and more scalable.
![coderabbitai[bot]](https://avatars.githubusercontent.com/in/347564?s=60&v=4){kind=small}
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Actionable comments posted: 1
🧹 Nitpick comments (1)
components/sections/home8/section4.tsx (1)
23-25: Consider extracting a shared background layer component.The same
header-bg20.png+ container layering pattern is repeated across multiple sections. A small shared component would reduce style drift and keep future tuning centralized.🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed. In `@components/sections/home8/section4.tsx` around lines 23 - 25, Extract the repeated background+layer pattern into a reusable React component (e.g., BackgroundLayer) that encapsulates the two Next.js Image elements (the main background image like "header-bg20.png" and the overlay "layer1" image) along with their styles/props (fill, objectFit, zIndex, priority/className), then replace the inline Image pairs in section4's JSX with <BackgroundLayer src="/assets/img/bg/header-bg20.png" overlay="/assets/img/elements/layer1.png" ... /> (or similar props) so all sections import and use this single component to centralize styling and avoid drift.
🤖 Prompt for all review comments with AI agents
Verify each finding against the current code and only fix it if needed.
Inline comments:
In `@components/sections/home8/section4.tsx`:
- Line 25: The Image component rendering the decorative background layer (the
JSX element using <Image src="/assets/img/elements/layer1.png"
className="layer1" ... />) is marked with priority, which preloads a non-LCP
asset; remove the priority prop from this decorative/background Image so it uses
default loading (lazy) instead of preloading. Locate the Image element in
section4.tsx (the layer1 image) and delete the priority attribute so the
decorative asset no longer consumes early network bandwidth.
---
Nitpick comments:
In `@components/sections/home8/section4.tsx`:
- Around line 23-25: Extract the repeated background+layer pattern into a
reusable React component (e.g., BackgroundLayer) that encapsulates the two
Next.js Image elements (the main background image like "header-bg20.png" and the
overlay "layer1" image) along with their styles/props (fill, objectFit, zIndex,
priority/className), then replace the inline Image pairs in section4's JSX with
<BackgroundLayer src="/assets/img/bg/header-bg20.png"
overlay="/assets/img/elements/layer1.png" ... /> (or similar props) so all
sections import and use this single component to centralize styling and avoid
drift.
ℹ️ Review info
⚙️ Run configuration
Configuration used: Organization UI
Review profile: CHILL
Plan: Pro
Run ID: 45775a2e-bf62-4903-b144-1c5796518cf3
📒 Files selected for processing (3)
components/sections/home8/section3.tsxcomponents/sections/home8/section4.tsxcomponents/sections/home8/section5.tsx
| <Image src="/assets/img/elements/layer1.png" className="layer1" alt="" fill priority /> | ||
| {/* ⚡ Bolt: Using Next.js Image instead of CSS background-image to enable automatic image optimization and caching. Impact: Eliminates unoptimized duplicate network requests for this background image */} | ||
| <Image src="/assets/img/bg/header-bg20.png" alt="" fill style={{ objectFit: "cover", zIndex: -1 }} /> | ||
| <Image src="/assets/img/elements/layer1.png" className="layer1" alt="" fill priority style={{ zIndex: -1 }} /> |
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🧩 Analysis chain
🌐 Web query:
For Next.js 15 next/image, is priority recommended for decorative/background images that are not expected to be the LCP element?
💡 Result:
No. In Next.js (including v15), priority is intended for the image that will be the page’s Largest Contentful Paint (LCP) element—typically an above-the-fold hero—because it causes the image to be specially prioritized (e.g., preloaded / priority hints) to improve LCP. For decorative/background images that aren’t expected to be LCP, you generally should not set priority; let them load normally (default lazy-loading) to avoid spending early network bandwidth on non-critical imagery. [1], [2]
Remove priority from the decorative layer image.
Line 25 preloads a non-LCP decorative asset with priority, wasting early network bandwidth on non-critical imagery. In Next.js, priority is intended only for the page's Largest Contentful Paint (LCP) element; decorative/background images should load normally with default lazy-loading.
Suggested change
- <Image src="/assets/img/elements/layer1.png" className="layer1" alt="" fill priority style={{ zIndex: -1 }} />
+ <Image src="/assets/img/elements/layer1.png" className="layer1" alt="" fill style={{ zIndex: -1 }} />📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
Suggested change
| <Image src="/assets/img/elements/layer1.png" className="layer1" alt="" fill priority style={{ zIndex: -1 }} /> | |
| <Image src="/assets/img/elements/layer1.png" className="layer1" alt="" fill style={{ zIndex: -1 }} /> |
🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.
In `@components/sections/home8/section4.tsx` at line 25, The Image component
rendering the decorative background layer (the JSX element using <Image
src="/assets/img/elements/layer1.png" className="layer1" ... />) is marked with
priority, which preloads a non-LCP asset; remove the priority prop from this
decorative/background Image so it uses default loading (lazy) instead of
preloading. Locate the Image element in section4.tsx (the layer1 image) and
delete the priority attribute so the decorative asset no longer consumes early
network bandwidth.
Co-authored-by: anyulled <100741+anyulled@users.noreply.github.com>
Co-authored-by: anyulled <100741+anyulled@users.noreply.github.com>
Co-authored-by: anyulled <100741+anyulled@users.noreply.github.com>
There was a problem hiding this comment.
Actionable comments posted: 1
🤖 Prompt for all review comments with AI agents
Verify each finding against the current code and only fix it if needed.
Inline comments:
In `@cypress/e2e/talks-and-speakers-layout.cy.ts`:
- Line 9: The test title is inconsistent with its assertion: the spec uses the
selector ".talks-grouped .track-section .row .col-lg-4" (a 3-column layout at
lg) but the test name still says "2-column grid"; update the Cypress test's
description/title to reflect a 3-column grid (or otherwise match the intended
breakpoint) so the name aligns with the assertion in the test containing
cy.get(".talks-grouped .track-section .row .col-lg-4"). Ensure the new title
clearly references the 3-column (col-lg-4) layout so future triage isn't
confused.
ℹ️ Review info
⚙️ Run configuration
Configuration used: Organization UI
Review profile: CHILL
Plan: Pro
Run ID: 76006374-7051-4c73-a01e-69c59d33bcc9
📒 Files selected for processing (2)
cypress/e2e/home/home-editions.cy.tscypress/e2e/talks-and-speakers-layout.cy.ts
| cy.get(".talks-filter-bar .tracks-scroll-container").should("exist"); | ||
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||
| cy.get(".talks-grouped .track-section .row .col-lg-6").should("have.length.at.least", 2); | ||
| cy.get(".talks-grouped .track-section .row .col-lg-4").should("have.length.at.least", 2); |
There was a problem hiding this comment.
Test description is now inconsistent with the asserted grid.
Line 9 checks .col-lg-4 (3-column layout at lg), but the test name still says “2-column grid”. Please update the test title to match the new assertion to avoid confusion during triage.
Suggested fix
- it("Talks page has filters at top and 2-column grid", () => {
+ it("Talks page has filters at top and 3-column grid", () => {🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.
In `@cypress/e2e/talks-and-speakers-layout.cy.ts` at line 9, The test title is
inconsistent with its assertion: the spec uses the selector ".talks-grouped
.track-section .row .col-lg-4" (a 3-column layout at lg) but the test name still
says "2-column grid"; update the Cypress test's description/title to reflect a
3-column grid (or otherwise match the intended breakpoint) so the name aligns
with the assertion in the test containing cy.get(".talks-grouped .track-section
.row .col-lg-4"). Ensure the new title clearly references the 3-column
(col-lg-4) layout so future triage isn't confused.
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💡 What: The optimization implemented is converting static CSS
backgroundImageproperties incomponents/sections/home8/section3.tsx,components/sections/home8/section4.tsx, andcomponents/sections/home8/section5.tsxinto Next.js<Image />components. The parent containers have been givenposition: relativeandisolation: isolateto maintain stacking context, while the images usezIndex: -1andobjectFit: cover.🎯 Why: The performance problem it solves is that CSS background images are generally not optimized by Next.js. They bypass the image optimization pipeline, meaning users download larger, unoptimized raw image files instead of smaller WebP/AVIF formats, which negatively impacts load times and bandwidth.
📊 Impact: Reduces unoptimized duplicate network requests for the same background image across multiple sections. It leverages Next.js automatic image optimization and caching.
🔬 Measurement: Verify by loading the homepage in the browser and checking the network tab. The background image for Sections 3, 4, and 5 (
header-bg20.png) will now be served from/_next/imagerather than its raw path, confirming optimization.PR created automatically by Jules for task 13019546950952754637 started by @anyulled
Summary by CodeRabbit