10.5. Ensure content remains readable even when text spacing properties are customized
On every web page, content must remain readable when text spacing properties are customized.
To ensure this rule is respected:
- Do not define a fixed height (CSS
heightproperty) on elements likely to contain text, particularly form fields and card type component. - Be careful when using absolute positioning (CSS declaration:
position: absolute;). Although this type of positioning is compatible with accessibility, it can cause content overlap in some cases. - Do not mark up text that is not a paragraph with
<p>tags, such as tags, buttons, etc.
Tip
The free “Text Spacing” tool (add to your browser favorites) allows you to test whether this rule is being applied correctly.
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Updates
- 29 October 2025
- Update the sheet to adapt to current development methods.