Modify This Picture So a Screen Reader Will Recognize It as a Decorative-Only Design Element: Accessibility Hack for Web Designers

I’ve lost count of how many sites I’ve seen with decorative images that confuse screen readers. Here’s the thing—one line of code can fix this for good.

Adding aria-hidden=”true” to an img tag tells assistive tech to skip it entirely. For background images in CSS, the alt attribute becomes irrelevant, but HTML elements still need this attribute.

You’ll make your site more accessible without changing its visual design. Test with a screen reader to confirm it’s ignored completely—no extra noise for users who rely on them.

Works for logos, dividers, or any purely visual element. Let’s clean up your markup.

What Youll Need

Instructions

Here’s how I handle decorative images to ensure screen readers ignore them without breaking accessibility.

Locate the image in your HTML and modify its alt attribute to an empty string: alt=””. This explicitly tells assistive technologies that the image serves no informational purpose and should be skipped entirely during screen reading.

An empty alt is the standard way to mark decorative imagery. Some developers mistakenly omit the alt attribute entirely, but that can cause screen readers to announce the image filename instead, which defeats the purpose.

Before finalizing, confirm the image truly adds no context to the page content. Decorative images might include visual dividers, purely aesthetic icons, or background textures that don’t convey information not already present in adjacent text.

If the image reinforces or illustrates nearby text, it’s not decorative. In those cases, you’d need descriptive alt text instead. This step prevents accidentally hiding meaningful content from users who rely on screen readers.

Enable a screen reader like NVDA, VoiceOver, or JAWS and navigate to the page. The image should be completely silent when focused—no filename, no “image” announcement, nothing. This confirms the empty alt attribute is working as intended.

If you hear any reference to the image, revisit your markup. Common mistakes include using aria-hidden=”true” without the empty alt (redundant) or forgetting to remove title attributes that might still be read.

For images applied via CSS (background-image), screen readers typically ignore them by default. However, if the background image is critical to understanding content, consider moving it to HTML with proper alt text or providing the same information in text form.

This step often catches developers who assume all images are handled the same way. CSS backgrounds and HTML images behave differently with assistive technology, so they require different approaches to accessibility.

Run your page through tools like axe, WAVE, or Lighthouse. These will flag missing alt attributes but should show no issues for properly marked decorative images. Automated testing catches consistent application of this technique across all images on the page.

Remember that automated tools can’t determine if an image is truly decorative—that’s a human judgment call. But they will verify that your implementation follows the technical requirements for hiding images from screen readers.

Tips and Common Mistakes

Small oversights in accessibility markup can undermine your entire effort, so here are the details that separate proper implementation from common pitfalls.

Critical Attribute: In Step 1, that empty alt=”” isn’t just a suggestion—it’s the only way to guarantee screen readers skip the image entirely. I’ve seen developers use alt=”decorative” or alt=”spacer”, but these actually make screen readers announce those words, which defeats the purpose completely.

Semantic Verification: Step 2 requires honest self-assessment. I once thought a decorative border was harmless, only to realize it subtly reinforced the section’s theme. If there’s any doubt, ask a colleague or use a screen reader to test—if the image adds context, it’s not decorative and needs proper alt text.

Testing Protocol: For Step 3, don’t just test with one screen reader. NVDA, VoiceOver, and JAWS all handle markup slightly differently. I recommend testing with at least two to ensure consistent behavior across platforms, especially when dealing with complex page layouts.

CSS Consideration: Step 4 highlights a common blind spot. While CSS background images are generally ignored, I’ve encountered cases where they contained crucial visual information. When in doubt, move the image to HTML or provide text alternatives—better safe than inaccessible.

Frequently Asked Questions

By adding __PROTECT_8 and an empty PROTECT_9__ attribute, you ensure screen readers ignore decorative images, improving accessibility. Small tweaks make a big difference! 🎯 Next, audit your site for other non-decorative images that need proper descriptions to keep your content inclusive.