- Success Criterion 1.1.1
- Conformance level A
Complex Infographic With No Long-Form Text Description
1.1.1 — Non-text Content
Scenario
Setting
An online clothing store's product listing page
What’s wrong
Complex images (charts, diagrams, infographics) with only a short alt and no long description mechanism anywhere.
Example
<div class="product-tile">
<img src="denim-jacket.jpg" alt="Classic Denim Jacket">
<button aria-haspopup="dialog">Size guide</button>
</div>
<!-- clicking "Size guide" opens a modal containing this image -->
<img src="size-guide-infographic.png" alt="Size guide">
<!-- the infographic actually contains a full measurement chart with 6 size ranges --> Why it matters
A shopper comparing jackets in the grid opens the size guide from a product tile and still can't get the actual measurements from "size guide" alone, so they either guess or abandon the purchase.
How to test
Look for a 'read more', linked detail page, or expandable description near complex images (charts, infographics, diagrams): if only a one-line alt exists, it fails.
How to fix
Make the full content available as real text or a table alongside a short label. A short alt is fine as a label, but complex information needs a real text equivalent nearby.
<img src="size-guide-infographic.png" alt="Size guide summary" aria-describedby="size-guide-full">
<div id="size-guide-full">
<table><!-- real, accessible measurement table --></table>
</div> Outcome
A shopper opens the size guide modal from the product tile, reads the full measurement table with a screen reader, and picks the correct size on the first order.
Who is affected
Blind and low-vision shoppers browsing the listing grid need the full measurement data, not just a label, to choose a size with confidence.
Learn more
- Understanding Understanding document (opens in a new tab)
Related scenarios
- Product Photo Added as a CSS Background With No Alt Text
- Chart Alt Text That Never Explains What Each Color Means
- Outdated Alt Text That No Longer Matches the Image
- Alt Text Left as a Filename Instead of a Real Description
- Decorative Image Not Hidden From Screen Reader Users
- Decorative Image Given Alt Text Instead of Being Marked Silent