Tuesday, March 10, 2026

What this means

Siteimprove may flag links inside accordion sections with the message "Interactive element has insufficient size." This is triggered by rule SIA-R113, which checks that clickable elements meet a minimum target size of 24x24 pixels.

This flag typically appears on links inside accordion items that are collapsed (closed) when Siteimprove scans the page.

Scope

This article applies only to links inside accordion sections. If you see an "insufficient size" flag on interactive elements outside of accordions, that may be a legitimate issue and should be investigated.

Why this is a false positive

SIA-R113 explicitly exempts elements that are "rendered on a line" — meaning elements with `display: inline`, which is how links normally render. Links inside accordions are inline elements and are excluded from this rule's requirements.

Additionally, at the font sizes used on SiteNow sites, these links already exceed the 24x24 pixel minimum when the accordion is open and the links are visible.

The issue occurs because Siteimprove's scanner evaluates links inside closed accordions as if they were visible on the page, but does not apply its own inline exemption. Screen readers and browsers handle these links correctly.

How to dismiss this in Siteimprove

  1. In Siteimprove, navigate to the page report for the SIA-R113 issue.
  2. Click the gear icon on the issue.
  3. Select Dismiss as false positive.
  4. Use the CSS selector `details:not([open]) .accordion__content a` to apply the dismissal to all accordion link occurrences.
  5. Siteimprove's accessibility team will review and confirm.

You can check the status of your request on the Activity page in your Siteimprove dashboard.