General lab services | Avantor

Clinical trial services | Avantor

Home | Avantor

Document Search | Avantor

Procurement & sourcing services | Avantor

Equipment and instrumentation | Avantor

Scientific services | Avantor

Sample management services | Avantor

Downstream optimization services | Avantor

Lists (e.g., `<ul>` or `<ol>`) should only contain list items (`<li>`) as a direct descendant 
to ensure that screen readers can accurately report the amount of items contained in the list. 

## Example

In the following example, some screen readers would say this list has two items, instead of 
four: 

```html
<ul>
    <div class="some_class">
        <li>Example 1</li>
    </div>
    <div class="some_other_class">
        <li>Example 2</li>
        <li>Example 3</li>
        <li>Example 4</li>
    </div>
</ul>
```

To fix this, you would need to remove the `<div class="some_class">` and 
`<div class="some_other_class>` elements and ensure only `<li>` list items remain.

## Further reading

The [formal specification for the list element](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/ul)
shows what is and is not permitted inside an `<ul>` and `<ol>`.

See [Technique H88](https://www.w3.org/TR/WCAG20-TECHS/H88.html) for more information.

list-not-following-semantics

January 2025

December 2024

Avantor

Title / URL	Issues
General lab services \| Avantorwww.avantorsciences.com/global/en/services/general-lab	3
Clinical trial services \| Avantorwww.avantorsciences.com/global/en/services/clinical	3
Home \| Avantorwww.avantorsciences.com/global/en/	3
Home \| Avantorwww.avantorsciences.com/global/	3
Document Search \| Avantorwww.avantorsciences.com/global/en/certificates/search	3
Procurement & sourcing services \| Avantorwww.avantorsciences.com/global/en/services/procurement-sourcing	3
Equipment and instrumentation \| Avantorwww.avantorsciences.com/global/en/products/equipment-instrumentation	3
Scientific services \| Avantorwww.avantorsciences.com/global/en/services/scientific	3
Sample management services \| Avantorwww.avantorsciences.com/global/en/services/sample-management	3
Downstream optimization services \| Avantorwww.avantorsciences.com/global/en/services/downstream-optimization	3

Ensure lists are marked up correctly

Avantor

Where this issue has occurred