CRO Manifesto
guideline #
116

Add Carousel Arrows for Easy Image Navigation

context

Not all users instinctively know they can swipe through product images, especially on desktop. If navigation isn't clear, they might miss out on key visuals that could influence their purchase decision.

Why?

Adding visible left/right arrows to your image carousel ensures effortless browsing. It makes navigation intuitive, reduces frustration, and encourages users to explore more product angles—helping them feel more confident about buying.

Content
  • Your product pages have image carousels but engagement time on product images is below 30 seconds
  • Heat map data shows users aren't interacting with product images beyond the first one
  • You're seeing high bounce rates (above 60%) on product pages with multiple product images
  • Your store has desktop traffic above 40% and uses image galleries without visible navigation controls
  • Cart abandonment happens frequently at the product page level, suggesting users need more visual confidence

For Shopify stores, most themes allow carousel arrow customization through the theme editor or custom CSS.

  1. Access Theme Customizer: Go to Online Store > Themes > Customize and navigate to Product Pages section
  2. Enable Arrow Navigation: Look for "Image gallery" or "Product media" settings and enable "Show navigation arrows" if available
  3. Custom CSS Method: If your theme lacks built-in arrows, add this to your theme's custom CSS:

.product-gallery .swiper-button-prev,
.product-gallery .swiper-button-next {
display: block !important;
background: rgba(255,255,255,0.9);
border-radius: 50%;
width: 44px;
height: 44px;
margin-top: -22px;
}
.product-gallery .swiper-button-prev:after,
.product-gallery .swiper-button-next:after {
font-size: 18px;
color: #333;
}

  1. Mobile Considerations: Keep arrows visible on mobile but reduce size to 36px for touch-friendly interaction
  2. Testing: Ensure arrows work on both desktop and mobile before going live

Timeline: 2-4 hours for implementation and testing across devices.

  • Image Engagement Rate: Track clicks on product images - expect 25-40% increase in image interactions
  • Time on Product Page: Monitor average session duration on product pages - target 15-30% improvement
  • Product Page Conversion Rate: Measure add-to-cart rate from product pages - expect 5-15% lift
  • Bounce Rate: Track product page bounce rate reduction of 10-20% within 2-4 weeks of implementation
  • AVOID: Making arrows too small (under 32px) or low contrast - users won't notice them
  • BEST PRACTICE: Use arrows that are at least 40px with clear visual contrast against product images
  • AVOID: Placing arrows too close to image edges where they might be accidentally cropped
  • BEST PRACTICE: Position arrows with 20px minimum spacing from image boundaries and ensure they overlay properly
  • AVOID: Hiding arrows on mobile assuming everyone knows to swipe
  • BEST PRACTICE: Keep arrows visible across all devices but optimize size for touch interaction on mobile
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