The CSS clamp() function is often paired with viewport units for “fluid” font sizing that scales the text up and down at different viewport sizes. As common as this technique is, several voices warn that it opens up situations where text can fail WCAG Success Criterion 1.4.4, which specifies that text should scale up to at least 200% when the user’s browser reaches its 500% maximum zoom level. Max Barvian takes a deep look at the issue and offers ideas to help address it.
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