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Should You Set html { font-size: 62.5% }? Pros, Cons, and Alternatives

The 62.5% trick makes 1rem equal 10px, so 1.6rem = 16px. Easy math—but is it worth it?

Try the converter →

Pros

• Mental math: 1.4rem = 14px.
• Consistent baseline across the app.

Cons

• Conflicts with most tutorials and component libraries.
• Overrides user defaults; can surprise readers who scale text.

Alternatives

Use clamp() for fluid type, or keep the default 16px base and rely on the converter.