PGT-M conditions - page 33 of 97 | HFEA

PGT-M conditions - page 80 of 97 | HFEA

PGT-M conditions - page 63 of 97 | HFEA

PGT-M conditions - page 90 of 97 | HFEA

PGT-M conditions - page 67 of 97 | HFEA

PGT-M conditions - page 72 of 97 | HFEA

PGT-M conditions - page 23 of 97 | HFEA

PGT-M conditions - page 19 of 97 | HFEA

PGT-M conditions - page 39 of 97 | HFEA

PGT-M conditions - page 94 of 97 | HFEA

All interactive components on a page, such as buttons or menus, should be far enough apart 
from other interactive areas, to avoid them being used by mistake. 

This ensures people with motor impairments can easily click or tap on the right element.

## Methodology

This check is run on both the mobile and desktop versions of every page. Results
for each may differ.

1. All interactive elements are identified, including buttons, links, and form controls.
2. If an element is not normally visible, it is ignored. This includes elements which
   are positioned offscreen or cropped (e.g. for 'screen-reader only' text).
3. If an element is larger than 24 CSS pixels in both dimensions, it passes.
4. Otherwise, the element is compared to all other elements on the page.
5. The minimum horizontal gap between the element is calculated as 24 CSS pixels,  
   minus the width of the element.
6. The minimum vertical gap between the element is calculated as 24 CSS pixels,  
   minus the height of the element.
7. If another element falls within the minimum horizontal or vertical gap, the 
   element fails, unless both are links that point to the same place.

## Further reading

This is part of the draft WCAG 2.2 specification and is subject to change.

* [Target Size (Minimum)](https://w3c.github.io/wcag/understanding/target-size-minimum.html)

ensure-minimum-target-size

August 2025

July 2025

Human Fertilisation and Eymbryology Authority

	Title / URL	Issues
	PGT-M conditions - page 33 of 97 \| HFEAwww.hfea.gov.uk/pgt-m-conditions/?page=33	18
	PGT-M conditions - page 80 of 97 \| HFEAwww.hfea.gov.uk/pgt-m-conditions/?page=80	18
	PGT-M conditions - page 63 of 97 \| HFEAwww.hfea.gov.uk/pgt-m-conditions/?page=63	18
	PGT-M conditions - page 90 of 97 \| HFEAwww.hfea.gov.uk/pgt-m-conditions/?page=90	18
	PGT-M conditions - page 67 of 97 \| HFEAwww.hfea.gov.uk/pgt-m-conditions/?page=67	18
	PGT-M conditions - page 72 of 97 \| HFEAwww.hfea.gov.uk/pgt-m-conditions/?page=72	18
	PGT-M conditions - page 23 of 97 \| HFEAwww.hfea.gov.uk/pgt-m-conditions/?page=23	18
	PGT-M conditions - page 19 of 97 \| HFEAwww.hfea.gov.uk/pgt-m-conditions/?page=19	18
	PGT-M conditions - page 39 of 97 \| HFEAwww.hfea.gov.uk/pgt-m-conditions/?page=39	18
	PGT-M conditions - page 94 of 97 \| HFEAwww.hfea.gov.uk/pgt-m-conditions/?page=94	18

Ensure interactive components are far enough apart

Human Fertilisation and Eymbryology Authority

Where this issue has occurred