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Text-decoration-thickness: underline thickness is its own setting

Publisher: ResumeMaker • 1 source

Published: 23 Oct 2026 08:23 · Updated: 23 Oct 2026 08:23

AI source check: 22 Oct 2026 16:54. This is not editorial approval.

In a few sentences

In brief

text-decoration-thickness sets the thickness of a text decoration. This allows an underline to change without making the whole font heavier.

Useful to know

text-decoration-thickness sets the thickness of a text decoration. This allows an underline to change without making the whole font heavier. [1]

Check the line at different sizes and weights. Excessive thickness can interfere with reading around letter descenders. Consider underline offset too rather than relying on one visual sample.

Sources

For further detail and to check the information:

  1. [1] MDN — CSS text-decoration-thickness ↗